diff options
author | Linus Torvalds <torvalds@g5.osdl.org> | 2005-07-12 23:21:28 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-07-12 23:21:28 -0400 |
commit | bd4c625c061c2a38568d0add3478f59172455159 (patch) | |
tree | 1c44a17c55bce2ee7ad5ea3d15a208ecc0955f74 /fs/reiserfs/journal.c | |
parent | 7fa94c8868edfef8cb6a201fcc9a5078b7b961da (diff) |
reiserfs: run scripts/Lindent on reiserfs code
This was a pure indentation change, using:
scripts/Lindent fs/reiserfs/*.c include/linux/reiserfs_*.h
to make reiserfs match the regular Linux indentation style. As Jeff
Mahoney <jeffm@suse.com> writes:
The ReiserFS code is a mix of a number of different coding styles, sometimes
different even from line-to-line. Since the code has been relatively stable
for quite some time and there are few outstanding patches to be applied, it
is time to reformat the code to conform to the Linux style standard outlined
in Documentation/CodingStyle.
This patch contains the result of running scripts/Lindent against
fs/reiserfs/*.c and include/linux/reiserfs_*.h. There are places where the
code can be made to look better, but I'd rather keep those patches separate
so that there isn't a subtle by-hand hand accident in the middle of a huge
patch. To be clear: This patch is reformatting *only*.
A number of patches may follow that continue to make the code more consistent
with the Linux coding style.
Hans wasn't particularly enthusiastic about these patches, but said he
wouldn't really oppose them either.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/reiserfs/journal.c')
-rw-r--r-- | fs/reiserfs/journal.c | 6855 |
1 files changed, 3598 insertions, 3257 deletions
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c index d1bcf0da6728..c66c27ec4100 100644 --- a/fs/reiserfs/journal.c +++ b/fs/reiserfs/journal.c | |||
@@ -55,7 +55,6 @@ | |||
55 | #include <linux/writeback.h> | 55 | #include <linux/writeback.h> |
56 | #include <linux/blkdev.h> | 56 | #include <linux/blkdev.h> |
57 | 57 | ||
58 | |||
59 | /* gets a struct reiserfs_journal_list * from a list head */ | 58 | /* gets a struct reiserfs_journal_list * from a list head */ |
60 | #define JOURNAL_LIST_ENTRY(h) (list_entry((h), struct reiserfs_journal_list, \ | 59 | #define JOURNAL_LIST_ENTRY(h) (list_entry((h), struct reiserfs_journal_list, \ |
61 | j_list)) | 60 | j_list)) |
@@ -69,55 +68,61 @@ static int reiserfs_mounted_fs_count; | |||
69 | 68 | ||
70 | static struct workqueue_struct *commit_wq; | 69 | static struct workqueue_struct *commit_wq; |
71 | 70 | ||
72 | #define JOURNAL_TRANS_HALF 1018 /* must be correct to keep the desc and commit | 71 | #define JOURNAL_TRANS_HALF 1018 /* must be correct to keep the desc and commit |
73 | structs at 4k */ | 72 | structs at 4k */ |
74 | #define BUFNR 64 /*read ahead */ | 73 | #define BUFNR 64 /*read ahead */ |
75 | 74 | ||
76 | /* cnode stat bits. Move these into reiserfs_fs.h */ | 75 | /* cnode stat bits. Move these into reiserfs_fs.h */ |
77 | 76 | ||
78 | #define BLOCK_FREED 2 /* this block was freed, and can't be written. */ | 77 | #define BLOCK_FREED 2 /* this block was freed, and can't be written. */ |
79 | #define BLOCK_FREED_HOLDER 3 /* this block was freed during this transaction, and can't be written */ | 78 | #define BLOCK_FREED_HOLDER 3 /* this block was freed during this transaction, and can't be written */ |
80 | 79 | ||
81 | #define BLOCK_NEEDS_FLUSH 4 /* used in flush_journal_list */ | 80 | #define BLOCK_NEEDS_FLUSH 4 /* used in flush_journal_list */ |
82 | #define BLOCK_DIRTIED 5 | 81 | #define BLOCK_DIRTIED 5 |
83 | 82 | ||
84 | |||
85 | /* journal list state bits */ | 83 | /* journal list state bits */ |
86 | #define LIST_TOUCHED 1 | 84 | #define LIST_TOUCHED 1 |
87 | #define LIST_DIRTY 2 | 85 | #define LIST_DIRTY 2 |
88 | #define LIST_COMMIT_PENDING 4 /* someone will commit this list */ | 86 | #define LIST_COMMIT_PENDING 4 /* someone will commit this list */ |
89 | 87 | ||
90 | /* flags for do_journal_end */ | 88 | /* flags for do_journal_end */ |
91 | #define FLUSH_ALL 1 /* flush commit and real blocks */ | 89 | #define FLUSH_ALL 1 /* flush commit and real blocks */ |
92 | #define COMMIT_NOW 2 /* end and commit this transaction */ | 90 | #define COMMIT_NOW 2 /* end and commit this transaction */ |
93 | #define WAIT 4 /* wait for the log blocks to hit the disk*/ | 91 | #define WAIT 4 /* wait for the log blocks to hit the disk */ |
94 | 92 | ||
95 | static int do_journal_end(struct reiserfs_transaction_handle *,struct super_block *,unsigned long nblocks,int flags) ; | 93 | static int do_journal_end(struct reiserfs_transaction_handle *, |
96 | static int flush_journal_list(struct super_block *s, struct reiserfs_journal_list *jl, int flushall) ; | 94 | struct super_block *, unsigned long nblocks, |
97 | static int flush_commit_list(struct super_block *s, struct reiserfs_journal_list *jl, int flushall) ; | 95 | int flags); |
98 | static int can_dirty(struct reiserfs_journal_cnode *cn) ; | 96 | static int flush_journal_list(struct super_block *s, |
99 | static int journal_join(struct reiserfs_transaction_handle *th, struct super_block *p_s_sb, unsigned long nblocks); | 97 | struct reiserfs_journal_list *jl, int flushall); |
100 | static int release_journal_dev( struct super_block *super, | 98 | static int flush_commit_list(struct super_block *s, |
101 | struct reiserfs_journal *journal ); | 99 | struct reiserfs_journal_list *jl, int flushall); |
100 | static int can_dirty(struct reiserfs_journal_cnode *cn); | ||
101 | static int journal_join(struct reiserfs_transaction_handle *th, | ||
102 | struct super_block *p_s_sb, unsigned long nblocks); | ||
103 | static int release_journal_dev(struct super_block *super, | ||
104 | struct reiserfs_journal *journal); | ||
102 | static int dirty_one_transaction(struct super_block *s, | 105 | static int dirty_one_transaction(struct super_block *s, |
103 | struct reiserfs_journal_list *jl); | 106 | struct reiserfs_journal_list *jl); |
104 | static void flush_async_commits(void *p); | 107 | static void flush_async_commits(void *p); |
105 | static void queue_log_writer(struct super_block *s); | 108 | static void queue_log_writer(struct super_block *s); |
106 | 109 | ||
107 | /* values for join in do_journal_begin_r */ | 110 | /* values for join in do_journal_begin_r */ |
108 | enum { | 111 | enum { |
109 | JBEGIN_REG = 0, /* regular journal begin */ | 112 | JBEGIN_REG = 0, /* regular journal begin */ |
110 | JBEGIN_JOIN = 1, /* join the running transaction if at all possible */ | 113 | JBEGIN_JOIN = 1, /* join the running transaction if at all possible */ |
111 | JBEGIN_ABORT = 2, /* called from cleanup code, ignores aborted flag */ | 114 | JBEGIN_ABORT = 2, /* called from cleanup code, ignores aborted flag */ |
112 | }; | 115 | }; |
113 | 116 | ||
114 | static int do_journal_begin_r(struct reiserfs_transaction_handle *th, | 117 | static int do_journal_begin_r(struct reiserfs_transaction_handle *th, |
115 | struct super_block * p_s_sb, | 118 | struct super_block *p_s_sb, |
116 | unsigned long nblocks,int join); | 119 | unsigned long nblocks, int join); |
117 | 120 | ||
118 | static void init_journal_hash(struct super_block *p_s_sb) { | 121 | static void init_journal_hash(struct super_block *p_s_sb) |
119 | struct reiserfs_journal *journal = SB_JOURNAL (p_s_sb); | 122 | { |
120 | memset(journal->j_hash_table, 0, JOURNAL_HASH_SIZE * sizeof(struct reiserfs_journal_cnode *)) ; | 123 | struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb); |
124 | memset(journal->j_hash_table, 0, | ||
125 | JOURNAL_HASH_SIZE * sizeof(struct reiserfs_journal_cnode *)); | ||
121 | } | 126 | } |
122 | 127 | ||
123 | /* | 128 | /* |
@@ -125,149 +130,159 @@ static void init_journal_hash(struct super_block *p_s_sb) { | |||
125 | ** make schedule happen after I've freed a block. Look at remove_from_transaction and journal_mark_freed for | 130 | ** make schedule happen after I've freed a block. Look at remove_from_transaction and journal_mark_freed for |
126 | ** more details. | 131 | ** more details. |
127 | */ | 132 | */ |
128 | static int reiserfs_clean_and_file_buffer(struct buffer_head *bh) { | 133 | static int reiserfs_clean_and_file_buffer(struct buffer_head *bh) |
129 | if (bh) { | 134 | { |
130 | clear_buffer_dirty(bh); | 135 | if (bh) { |
131 | clear_buffer_journal_test(bh); | 136 | clear_buffer_dirty(bh); |
132 | } | 137 | clear_buffer_journal_test(bh); |
133 | return 0 ; | 138 | } |
139 | return 0; | ||
134 | } | 140 | } |
135 | 141 | ||
136 | static void disable_barrier(struct super_block *s) | 142 | static void disable_barrier(struct super_block *s) |
137 | { | 143 | { |
138 | REISERFS_SB(s)->s_mount_opt &= ~(1 << REISERFS_BARRIER_FLUSH); | 144 | REISERFS_SB(s)->s_mount_opt &= ~(1 << REISERFS_BARRIER_FLUSH); |
139 | printk("reiserfs: disabling flush barriers on %s\n", reiserfs_bdevname(s)); | 145 | printk("reiserfs: disabling flush barriers on %s\n", |
140 | } | 146 | reiserfs_bdevname(s)); |
141 | 147 | } | |
142 | static struct reiserfs_bitmap_node * | 148 | |
143 | allocate_bitmap_node(struct super_block *p_s_sb) { | 149 | static struct reiserfs_bitmap_node *allocate_bitmap_node(struct super_block |
144 | struct reiserfs_bitmap_node *bn ; | 150 | *p_s_sb) |
145 | static int id; | 151 | { |
146 | 152 | struct reiserfs_bitmap_node *bn; | |
147 | bn = reiserfs_kmalloc(sizeof(struct reiserfs_bitmap_node), GFP_NOFS, p_s_sb) ; | 153 | static int id; |
148 | if (!bn) { | 154 | |
149 | return NULL ; | 155 | bn = reiserfs_kmalloc(sizeof(struct reiserfs_bitmap_node), GFP_NOFS, |
150 | } | 156 | p_s_sb); |
151 | bn->data = reiserfs_kmalloc(p_s_sb->s_blocksize, GFP_NOFS, p_s_sb) ; | 157 | if (!bn) { |
152 | if (!bn->data) { | 158 | return NULL; |
153 | reiserfs_kfree(bn, sizeof(struct reiserfs_bitmap_node), p_s_sb) ; | 159 | } |
154 | return NULL ; | 160 | bn->data = reiserfs_kmalloc(p_s_sb->s_blocksize, GFP_NOFS, p_s_sb); |
155 | } | 161 | if (!bn->data) { |
156 | bn->id = id++ ; | 162 | reiserfs_kfree(bn, sizeof(struct reiserfs_bitmap_node), p_s_sb); |
157 | memset(bn->data, 0, p_s_sb->s_blocksize) ; | 163 | return NULL; |
158 | INIT_LIST_HEAD(&bn->list) ; | 164 | } |
159 | return bn ; | 165 | bn->id = id++; |
160 | } | 166 | memset(bn->data, 0, p_s_sb->s_blocksize); |
161 | 167 | INIT_LIST_HEAD(&bn->list); | |
162 | static struct reiserfs_bitmap_node * | 168 | return bn; |
163 | get_bitmap_node(struct super_block *p_s_sb) { | 169 | } |
164 | struct reiserfs_journal *journal = SB_JOURNAL (p_s_sb); | 170 | |
165 | struct reiserfs_bitmap_node *bn = NULL; | 171 | static struct reiserfs_bitmap_node *get_bitmap_node(struct super_block *p_s_sb) |
166 | struct list_head *entry = journal->j_bitmap_nodes.next ; | 172 | { |
167 | 173 | struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb); | |
168 | journal->j_used_bitmap_nodes++ ; | 174 | struct reiserfs_bitmap_node *bn = NULL; |
169 | repeat: | 175 | struct list_head *entry = journal->j_bitmap_nodes.next; |
170 | 176 | ||
171 | if(entry != &journal->j_bitmap_nodes) { | 177 | journal->j_used_bitmap_nodes++; |
172 | bn = list_entry(entry, struct reiserfs_bitmap_node, list) ; | 178 | repeat: |
173 | list_del(entry) ; | 179 | |
174 | memset(bn->data, 0, p_s_sb->s_blocksize) ; | 180 | if (entry != &journal->j_bitmap_nodes) { |
175 | journal->j_free_bitmap_nodes-- ; | 181 | bn = list_entry(entry, struct reiserfs_bitmap_node, list); |
176 | return bn ; | 182 | list_del(entry); |
177 | } | 183 | memset(bn->data, 0, p_s_sb->s_blocksize); |
178 | bn = allocate_bitmap_node(p_s_sb) ; | 184 | journal->j_free_bitmap_nodes--; |
179 | if (!bn) { | 185 | return bn; |
180 | yield(); | 186 | } |
181 | goto repeat ; | 187 | bn = allocate_bitmap_node(p_s_sb); |
182 | } | 188 | if (!bn) { |
183 | return bn ; | 189 | yield(); |
190 | goto repeat; | ||
191 | } | ||
192 | return bn; | ||
184 | } | 193 | } |
185 | static inline void free_bitmap_node(struct super_block *p_s_sb, | 194 | static inline void free_bitmap_node(struct super_block *p_s_sb, |
186 | struct reiserfs_bitmap_node *bn) { | 195 | struct reiserfs_bitmap_node *bn) |
187 | struct reiserfs_journal *journal = SB_JOURNAL (p_s_sb); | 196 | { |
188 | journal->j_used_bitmap_nodes-- ; | 197 | struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb); |
189 | if (journal->j_free_bitmap_nodes > REISERFS_MAX_BITMAP_NODES) { | 198 | journal->j_used_bitmap_nodes--; |
190 | reiserfs_kfree(bn->data, p_s_sb->s_blocksize, p_s_sb) ; | 199 | if (journal->j_free_bitmap_nodes > REISERFS_MAX_BITMAP_NODES) { |
191 | reiserfs_kfree(bn, sizeof(struct reiserfs_bitmap_node), p_s_sb) ; | 200 | reiserfs_kfree(bn->data, p_s_sb->s_blocksize, p_s_sb); |
192 | } else { | 201 | reiserfs_kfree(bn, sizeof(struct reiserfs_bitmap_node), p_s_sb); |
193 | list_add(&bn->list, &journal->j_bitmap_nodes) ; | 202 | } else { |
194 | journal->j_free_bitmap_nodes++ ; | 203 | list_add(&bn->list, &journal->j_bitmap_nodes); |
195 | } | 204 | journal->j_free_bitmap_nodes++; |
196 | } | 205 | } |
197 | 206 | } | |
198 | static void allocate_bitmap_nodes(struct super_block *p_s_sb) { | 207 | |
199 | int i ; | 208 | static void allocate_bitmap_nodes(struct super_block *p_s_sb) |
200 | struct reiserfs_journal *journal = SB_JOURNAL (p_s_sb); | 209 | { |
201 | struct reiserfs_bitmap_node *bn = NULL ; | 210 | int i; |
202 | for (i = 0 ; i < REISERFS_MIN_BITMAP_NODES ; i++) { | 211 | struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb); |
203 | bn = allocate_bitmap_node(p_s_sb) ; | 212 | struct reiserfs_bitmap_node *bn = NULL; |
204 | if (bn) { | 213 | for (i = 0; i < REISERFS_MIN_BITMAP_NODES; i++) { |
205 | list_add(&bn->list, &journal->j_bitmap_nodes) ; | 214 | bn = allocate_bitmap_node(p_s_sb); |
206 | journal->j_free_bitmap_nodes++ ; | 215 | if (bn) { |
207 | } else { | 216 | list_add(&bn->list, &journal->j_bitmap_nodes); |
208 | break ; // this is ok, we'll try again when more are needed | 217 | journal->j_free_bitmap_nodes++; |
209 | } | 218 | } else { |
210 | } | 219 | break; // this is ok, we'll try again when more are needed |
220 | } | ||
221 | } | ||
211 | } | 222 | } |
212 | 223 | ||
213 | static int set_bit_in_list_bitmap(struct super_block *p_s_sb, int block, | 224 | static int set_bit_in_list_bitmap(struct super_block *p_s_sb, int block, |
214 | struct reiserfs_list_bitmap *jb) { | 225 | struct reiserfs_list_bitmap *jb) |
215 | int bmap_nr = block / (p_s_sb->s_blocksize << 3) ; | 226 | { |
216 | int bit_nr = block % (p_s_sb->s_blocksize << 3) ; | 227 | int bmap_nr = block / (p_s_sb->s_blocksize << 3); |
228 | int bit_nr = block % (p_s_sb->s_blocksize << 3); | ||
217 | 229 | ||
218 | if (!jb->bitmaps[bmap_nr]) { | 230 | if (!jb->bitmaps[bmap_nr]) { |
219 | jb->bitmaps[bmap_nr] = get_bitmap_node(p_s_sb) ; | 231 | jb->bitmaps[bmap_nr] = get_bitmap_node(p_s_sb); |
220 | } | 232 | } |
221 | set_bit(bit_nr, (unsigned long *)jb->bitmaps[bmap_nr]->data) ; | 233 | set_bit(bit_nr, (unsigned long *)jb->bitmaps[bmap_nr]->data); |
222 | return 0 ; | 234 | return 0; |
223 | } | 235 | } |
224 | 236 | ||
225 | static void cleanup_bitmap_list(struct super_block *p_s_sb, | 237 | static void cleanup_bitmap_list(struct super_block *p_s_sb, |
226 | struct reiserfs_list_bitmap *jb) { | 238 | struct reiserfs_list_bitmap *jb) |
227 | int i; | 239 | { |
228 | if (jb->bitmaps == NULL) | 240 | int i; |
229 | return; | 241 | if (jb->bitmaps == NULL) |
230 | 242 | return; | |
231 | for (i = 0 ; i < SB_BMAP_NR(p_s_sb) ; i++) { | 243 | |
232 | if (jb->bitmaps[i]) { | 244 | for (i = 0; i < SB_BMAP_NR(p_s_sb); i++) { |
233 | free_bitmap_node(p_s_sb, jb->bitmaps[i]) ; | 245 | if (jb->bitmaps[i]) { |
234 | jb->bitmaps[i] = NULL ; | 246 | free_bitmap_node(p_s_sb, jb->bitmaps[i]); |
235 | } | 247 | jb->bitmaps[i] = NULL; |
236 | } | 248 | } |
249 | } | ||
237 | } | 250 | } |
238 | 251 | ||
239 | /* | 252 | /* |
240 | ** only call this on FS unmount. | 253 | ** only call this on FS unmount. |
241 | */ | 254 | */ |
242 | static int free_list_bitmaps(struct super_block *p_s_sb, | 255 | static int free_list_bitmaps(struct super_block *p_s_sb, |
243 | struct reiserfs_list_bitmap *jb_array) { | 256 | struct reiserfs_list_bitmap *jb_array) |
244 | int i ; | 257 | { |
245 | struct reiserfs_list_bitmap *jb ; | 258 | int i; |
246 | for (i = 0 ; i < JOURNAL_NUM_BITMAPS ; i++) { | 259 | struct reiserfs_list_bitmap *jb; |
247 | jb = jb_array + i ; | 260 | for (i = 0; i < JOURNAL_NUM_BITMAPS; i++) { |
248 | jb->journal_list = NULL ; | 261 | jb = jb_array + i; |
249 | cleanup_bitmap_list(p_s_sb, jb) ; | 262 | jb->journal_list = NULL; |
250 | vfree(jb->bitmaps) ; | 263 | cleanup_bitmap_list(p_s_sb, jb); |
251 | jb->bitmaps = NULL ; | 264 | vfree(jb->bitmaps); |
252 | } | 265 | jb->bitmaps = NULL; |
253 | return 0; | 266 | } |
254 | } | 267 | return 0; |
255 | 268 | } | |
256 | static int free_bitmap_nodes(struct super_block *p_s_sb) { | 269 | |
257 | struct reiserfs_journal *journal = SB_JOURNAL (p_s_sb); | 270 | static int free_bitmap_nodes(struct super_block *p_s_sb) |
258 | struct list_head *next = journal->j_bitmap_nodes.next ; | 271 | { |
259 | struct reiserfs_bitmap_node *bn ; | 272 | struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb); |
260 | 273 | struct list_head *next = journal->j_bitmap_nodes.next; | |
261 | while(next != &journal->j_bitmap_nodes) { | 274 | struct reiserfs_bitmap_node *bn; |
262 | bn = list_entry(next, struct reiserfs_bitmap_node, list) ; | 275 | |
263 | list_del(next) ; | 276 | while (next != &journal->j_bitmap_nodes) { |
264 | reiserfs_kfree(bn->data, p_s_sb->s_blocksize, p_s_sb) ; | 277 | bn = list_entry(next, struct reiserfs_bitmap_node, list); |
265 | reiserfs_kfree(bn, sizeof(struct reiserfs_bitmap_node), p_s_sb) ; | 278 | list_del(next); |
266 | next = journal->j_bitmap_nodes.next ; | 279 | reiserfs_kfree(bn->data, p_s_sb->s_blocksize, p_s_sb); |
267 | journal->j_free_bitmap_nodes-- ; | 280 | reiserfs_kfree(bn, sizeof(struct reiserfs_bitmap_node), p_s_sb); |
268 | } | 281 | next = journal->j_bitmap_nodes.next; |
269 | 282 | journal->j_free_bitmap_nodes--; | |
270 | return 0 ; | 283 | } |
284 | |||
285 | return 0; | ||
271 | } | 286 | } |
272 | 287 | ||
273 | /* | 288 | /* |
@@ -275,59 +290,65 @@ static int free_bitmap_nodes(struct super_block *p_s_sb) { | |||
275 | ** jb_array is the array to be filled in. | 290 | ** jb_array is the array to be filled in. |
276 | */ | 291 | */ |
277 | int reiserfs_allocate_list_bitmaps(struct super_block *p_s_sb, | 292 | int reiserfs_allocate_list_bitmaps(struct super_block *p_s_sb, |
278 | struct reiserfs_list_bitmap *jb_array, | 293 | struct reiserfs_list_bitmap *jb_array, |
279 | int bmap_nr) { | 294 | int bmap_nr) |
280 | int i ; | 295 | { |
281 | int failed = 0 ; | 296 | int i; |
282 | struct reiserfs_list_bitmap *jb ; | 297 | int failed = 0; |
283 | int mem = bmap_nr * sizeof(struct reiserfs_bitmap_node *) ; | 298 | struct reiserfs_list_bitmap *jb; |
284 | 299 | int mem = bmap_nr * sizeof(struct reiserfs_bitmap_node *); | |
285 | for (i = 0 ; i < JOURNAL_NUM_BITMAPS ; i++) { | 300 | |
286 | jb = jb_array + i ; | 301 | for (i = 0; i < JOURNAL_NUM_BITMAPS; i++) { |
287 | jb->journal_list = NULL ; | 302 | jb = jb_array + i; |
288 | jb->bitmaps = vmalloc( mem ) ; | 303 | jb->journal_list = NULL; |
289 | if (!jb->bitmaps) { | 304 | jb->bitmaps = vmalloc(mem); |
290 | reiserfs_warning(p_s_sb, "clm-2000, unable to allocate bitmaps for journal lists") ; | 305 | if (!jb->bitmaps) { |
291 | failed = 1; | 306 | reiserfs_warning(p_s_sb, |
292 | break ; | 307 | "clm-2000, unable to allocate bitmaps for journal lists"); |
293 | } | 308 | failed = 1; |
294 | memset(jb->bitmaps, 0, mem) ; | 309 | break; |
295 | } | 310 | } |
296 | if (failed) { | 311 | memset(jb->bitmaps, 0, mem); |
297 | free_list_bitmaps(p_s_sb, jb_array) ; | 312 | } |
298 | return -1 ; | 313 | if (failed) { |
299 | } | 314 | free_list_bitmaps(p_s_sb, jb_array); |
300 | return 0 ; | 315 | return -1; |
316 | } | ||
317 | return 0; | ||
301 | } | 318 | } |
302 | 319 | ||
303 | /* | 320 | /* |
304 | ** find an available list bitmap. If you can't find one, flush a commit list | 321 | ** find an available list bitmap. If you can't find one, flush a commit list |
305 | ** and try again | 322 | ** and try again |
306 | */ | 323 | */ |
307 | static struct reiserfs_list_bitmap * | 324 | static struct reiserfs_list_bitmap *get_list_bitmap(struct super_block *p_s_sb, |
308 | get_list_bitmap(struct super_block *p_s_sb, struct reiserfs_journal_list *jl) { | 325 | struct reiserfs_journal_list |
309 | int i,j ; | 326 | *jl) |
310 | struct reiserfs_journal *journal = SB_JOURNAL (p_s_sb); | 327 | { |
311 | struct reiserfs_list_bitmap *jb = NULL ; | 328 | int i, j; |
312 | 329 | struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb); | |
313 | for (j = 0 ; j < (JOURNAL_NUM_BITMAPS * 3) ; j++) { | 330 | struct reiserfs_list_bitmap *jb = NULL; |
314 | i = journal->j_list_bitmap_index ; | 331 | |
315 | journal->j_list_bitmap_index = (i + 1) % JOURNAL_NUM_BITMAPS ; | 332 | for (j = 0; j < (JOURNAL_NUM_BITMAPS * 3); j++) { |
316 | jb = journal->j_list_bitmap + i ; | 333 | i = journal->j_list_bitmap_index; |
317 | if (journal->j_list_bitmap[i].journal_list) { | 334 | journal->j_list_bitmap_index = (i + 1) % JOURNAL_NUM_BITMAPS; |
318 | flush_commit_list(p_s_sb, journal->j_list_bitmap[i].journal_list, 1) ; | 335 | jb = journal->j_list_bitmap + i; |
319 | if (!journal->j_list_bitmap[i].journal_list) { | 336 | if (journal->j_list_bitmap[i].journal_list) { |
320 | break ; | 337 | flush_commit_list(p_s_sb, |
321 | } | 338 | journal->j_list_bitmap[i]. |
322 | } else { | 339 | journal_list, 1); |
323 | break ; | 340 | if (!journal->j_list_bitmap[i].journal_list) { |
324 | } | 341 | break; |
325 | } | 342 | } |
326 | if (jb->journal_list) { /* double check to make sure if flushed correctly */ | 343 | } else { |
327 | return NULL ; | 344 | break; |
328 | } | 345 | } |
329 | jb->journal_list = jl ; | 346 | } |
330 | return jb ; | 347 | if (jb->journal_list) { /* double check to make sure if flushed correctly */ |
348 | return NULL; | ||
349 | } | ||
350 | jb->journal_list = jl; | ||
351 | return jb; | ||
331 | } | 352 | } |
332 | 353 | ||
333 | /* | 354 | /* |
@@ -335,104 +356,114 @@ get_list_bitmap(struct super_block *p_s_sb, struct reiserfs_journal_list *jl) { | |||
335 | ** Uses the cnode->next and cnode->prev pointers | 356 | ** Uses the cnode->next and cnode->prev pointers |
336 | ** returns NULL on failure | 357 | ** returns NULL on failure |
337 | */ | 358 | */ |
338 | static struct reiserfs_journal_cnode *allocate_cnodes(int num_cnodes) { | 359 | static struct reiserfs_journal_cnode *allocate_cnodes(int num_cnodes) |
339 | struct reiserfs_journal_cnode *head ; | 360 | { |
340 | int i ; | 361 | struct reiserfs_journal_cnode *head; |
341 | if (num_cnodes <= 0) { | 362 | int i; |
342 | return NULL ; | 363 | if (num_cnodes <= 0) { |
343 | } | 364 | return NULL; |
344 | head = vmalloc(num_cnodes * sizeof(struct reiserfs_journal_cnode)) ; | 365 | } |
345 | if (!head) { | 366 | head = vmalloc(num_cnodes * sizeof(struct reiserfs_journal_cnode)); |
346 | return NULL ; | 367 | if (!head) { |
347 | } | 368 | return NULL; |
348 | memset(head, 0, num_cnodes * sizeof(struct reiserfs_journal_cnode)) ; | 369 | } |
349 | head[0].prev = NULL ; | 370 | memset(head, 0, num_cnodes * sizeof(struct reiserfs_journal_cnode)); |
350 | head[0].next = head + 1 ; | 371 | head[0].prev = NULL; |
351 | for (i = 1 ; i < num_cnodes; i++) { | 372 | head[0].next = head + 1; |
352 | head[i].prev = head + (i - 1) ; | 373 | for (i = 1; i < num_cnodes; i++) { |
353 | head[i].next = head + (i + 1) ; /* if last one, overwrite it after the if */ | 374 | head[i].prev = head + (i - 1); |
354 | } | 375 | head[i].next = head + (i + 1); /* if last one, overwrite it after the if */ |
355 | head[num_cnodes -1].next = NULL ; | 376 | } |
356 | return head ; | 377 | head[num_cnodes - 1].next = NULL; |
378 | return head; | ||
357 | } | 379 | } |
358 | 380 | ||
359 | /* | 381 | /* |
360 | ** pulls a cnode off the free list, or returns NULL on failure | 382 | ** pulls a cnode off the free list, or returns NULL on failure |
361 | */ | 383 | */ |
362 | static struct reiserfs_journal_cnode *get_cnode(struct super_block *p_s_sb) { | 384 | static struct reiserfs_journal_cnode *get_cnode(struct super_block *p_s_sb) |
363 | struct reiserfs_journal_cnode *cn ; | 385 | { |
364 | struct reiserfs_journal *journal = SB_JOURNAL (p_s_sb); | 386 | struct reiserfs_journal_cnode *cn; |
365 | 387 | struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb); | |
366 | reiserfs_check_lock_depth(p_s_sb, "get_cnode") ; | 388 | |
367 | 389 | reiserfs_check_lock_depth(p_s_sb, "get_cnode"); | |
368 | if (journal->j_cnode_free <= 0) { | 390 | |
369 | return NULL ; | 391 | if (journal->j_cnode_free <= 0) { |
370 | } | 392 | return NULL; |
371 | journal->j_cnode_used++ ; | 393 | } |
372 | journal->j_cnode_free-- ; | 394 | journal->j_cnode_used++; |
373 | cn = journal->j_cnode_free_list ; | 395 | journal->j_cnode_free--; |
374 | if (!cn) { | 396 | cn = journal->j_cnode_free_list; |
375 | return cn ; | 397 | if (!cn) { |
376 | } | 398 | return cn; |
377 | if (cn->next) { | 399 | } |
378 | cn->next->prev = NULL ; | 400 | if (cn->next) { |
379 | } | 401 | cn->next->prev = NULL; |
380 | journal->j_cnode_free_list = cn->next ; | 402 | } |
381 | memset(cn, 0, sizeof(struct reiserfs_journal_cnode)) ; | 403 | journal->j_cnode_free_list = cn->next; |
382 | return cn ; | 404 | memset(cn, 0, sizeof(struct reiserfs_journal_cnode)); |
405 | return cn; | ||
383 | } | 406 | } |
384 | 407 | ||
385 | /* | 408 | /* |
386 | ** returns a cnode to the free list | 409 | ** returns a cnode to the free list |
387 | */ | 410 | */ |
388 | static void free_cnode(struct super_block *p_s_sb, struct reiserfs_journal_cnode *cn) { | 411 | static void free_cnode(struct super_block *p_s_sb, |
389 | struct reiserfs_journal *journal = SB_JOURNAL (p_s_sb); | 412 | struct reiserfs_journal_cnode *cn) |
413 | { | ||
414 | struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb); | ||
390 | 415 | ||
391 | reiserfs_check_lock_depth(p_s_sb, "free_cnode") ; | 416 | reiserfs_check_lock_depth(p_s_sb, "free_cnode"); |
392 | 417 | ||
393 | journal->j_cnode_used-- ; | 418 | journal->j_cnode_used--; |
394 | journal->j_cnode_free++ ; | 419 | journal->j_cnode_free++; |
395 | /* memset(cn, 0, sizeof(struct reiserfs_journal_cnode)) ; */ | 420 | /* memset(cn, 0, sizeof(struct reiserfs_journal_cnode)) ; */ |
396 | cn->next = journal->j_cnode_free_list ; | 421 | cn->next = journal->j_cnode_free_list; |
397 | if (journal->j_cnode_free_list) { | 422 | if (journal->j_cnode_free_list) { |
398 | journal->j_cnode_free_list->prev = cn ; | 423 | journal->j_cnode_free_list->prev = cn; |
399 | } | 424 | } |
400 | cn->prev = NULL ; /* not needed with the memset, but I might kill the memset, and forget to do this */ | 425 | cn->prev = NULL; /* not needed with the memset, but I might kill the memset, and forget to do this */ |
401 | journal->j_cnode_free_list = cn ; | 426 | journal->j_cnode_free_list = cn; |
402 | } | 427 | } |
403 | 428 | ||
404 | static void clear_prepared_bits(struct buffer_head *bh) { | 429 | static void clear_prepared_bits(struct buffer_head *bh) |
405 | clear_buffer_journal_prepared (bh); | 430 | { |
406 | clear_buffer_journal_restore_dirty (bh); | 431 | clear_buffer_journal_prepared(bh); |
432 | clear_buffer_journal_restore_dirty(bh); | ||
407 | } | 433 | } |
408 | 434 | ||
409 | /* utility function to force a BUG if it is called without the big | 435 | /* utility function to force a BUG if it is called without the big |
410 | ** kernel lock held. caller is the string printed just before calling BUG() | 436 | ** kernel lock held. caller is the string printed just before calling BUG() |
411 | */ | 437 | */ |
412 | void reiserfs_check_lock_depth(struct super_block *sb, char *caller) { | 438 | void reiserfs_check_lock_depth(struct super_block *sb, char *caller) |
439 | { | ||
413 | #ifdef CONFIG_SMP | 440 | #ifdef CONFIG_SMP |
414 | if (current->lock_depth < 0) { | 441 | if (current->lock_depth < 0) { |
415 | reiserfs_panic (sb, "%s called without kernel lock held", caller) ; | 442 | reiserfs_panic(sb, "%s called without kernel lock held", |
416 | } | 443 | caller); |
444 | } | ||
417 | #else | 445 | #else |
418 | ; | 446 | ; |
419 | #endif | 447 | #endif |
420 | } | 448 | } |
421 | 449 | ||
422 | /* return a cnode with same dev, block number and size in table, or null if not found */ | 450 | /* return a cnode with same dev, block number and size in table, or null if not found */ |
423 | static inline struct reiserfs_journal_cnode * | 451 | static inline struct reiserfs_journal_cnode *get_journal_hash_dev(struct |
424 | get_journal_hash_dev(struct super_block *sb, | 452 | super_block |
425 | struct reiserfs_journal_cnode **table, | 453 | *sb, |
426 | long bl) | 454 | struct |
455 | reiserfs_journal_cnode | ||
456 | **table, | ||
457 | long bl) | ||
427 | { | 458 | { |
428 | struct reiserfs_journal_cnode *cn ; | 459 | struct reiserfs_journal_cnode *cn; |
429 | cn = journal_hash(table, sb, bl) ; | 460 | cn = journal_hash(table, sb, bl); |
430 | while(cn) { | 461 | while (cn) { |
431 | if (cn->blocknr == bl && cn->sb == sb) | 462 | if (cn->blocknr == bl && cn->sb == sb) |
432 | return cn ; | 463 | return cn; |
433 | cn = cn->hnext ; | 464 | cn = cn->hnext; |
434 | } | 465 | } |
435 | return (struct reiserfs_journal_cnode *)0 ; | 466 | return (struct reiserfs_journal_cnode *)0; |
436 | } | 467 | } |
437 | 468 | ||
438 | /* | 469 | /* |
@@ -454,91 +485,103 @@ get_journal_hash_dev(struct super_block *sb, | |||
454 | ** | 485 | ** |
455 | */ | 486 | */ |
456 | int reiserfs_in_journal(struct super_block *p_s_sb, | 487 | int reiserfs_in_journal(struct super_block *p_s_sb, |
457 | int bmap_nr, int bit_nr, int search_all, | 488 | int bmap_nr, int bit_nr, int search_all, |
458 | b_blocknr_t *next_zero_bit) { | 489 | b_blocknr_t * next_zero_bit) |
459 | struct reiserfs_journal *journal = SB_JOURNAL (p_s_sb); | 490 | { |
460 | struct reiserfs_journal_cnode *cn ; | 491 | struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb); |
461 | struct reiserfs_list_bitmap *jb ; | 492 | struct reiserfs_journal_cnode *cn; |
462 | int i ; | 493 | struct reiserfs_list_bitmap *jb; |
463 | unsigned long bl; | 494 | int i; |
464 | 495 | unsigned long bl; | |
465 | *next_zero_bit = 0 ; /* always start this at zero. */ | 496 | |
466 | 497 | *next_zero_bit = 0; /* always start this at zero. */ | |
467 | PROC_INFO_INC( p_s_sb, journal.in_journal ); | 498 | |
468 | /* If we aren't doing a search_all, this is a metablock, and it will be logged before use. | 499 | PROC_INFO_INC(p_s_sb, journal.in_journal); |
469 | ** if we crash before the transaction that freed it commits, this transaction won't | 500 | /* If we aren't doing a search_all, this is a metablock, and it will be logged before use. |
470 | ** have committed either, and the block will never be written | 501 | ** if we crash before the transaction that freed it commits, this transaction won't |
471 | */ | 502 | ** have committed either, and the block will never be written |
472 | if (search_all) { | 503 | */ |
473 | for (i = 0 ; i < JOURNAL_NUM_BITMAPS ; i++) { | 504 | if (search_all) { |
474 | PROC_INFO_INC( p_s_sb, journal.in_journal_bitmap ); | 505 | for (i = 0; i < JOURNAL_NUM_BITMAPS; i++) { |
475 | jb = journal->j_list_bitmap + i ; | 506 | PROC_INFO_INC(p_s_sb, journal.in_journal_bitmap); |
476 | if (jb->journal_list && jb->bitmaps[bmap_nr] && | 507 | jb = journal->j_list_bitmap + i; |
477 | test_bit(bit_nr, (unsigned long *)jb->bitmaps[bmap_nr]->data)) { | 508 | if (jb->journal_list && jb->bitmaps[bmap_nr] && |
478 | *next_zero_bit = find_next_zero_bit((unsigned long *) | 509 | test_bit(bit_nr, |
479 | (jb->bitmaps[bmap_nr]->data), | 510 | (unsigned long *)jb->bitmaps[bmap_nr]-> |
480 | p_s_sb->s_blocksize << 3, bit_nr+1) ; | 511 | data)) { |
481 | return 1 ; | 512 | *next_zero_bit = |
482 | } | 513 | find_next_zero_bit((unsigned long *) |
483 | } | 514 | (jb->bitmaps[bmap_nr]-> |
484 | } | 515 | data), |
485 | 516 | p_s_sb->s_blocksize << 3, | |
486 | bl = bmap_nr * (p_s_sb->s_blocksize << 3) + bit_nr; | 517 | bit_nr + 1); |
487 | /* is it in any old transactions? */ | 518 | return 1; |
488 | if (search_all && (cn = get_journal_hash_dev(p_s_sb, journal->j_list_hash_table, bl))) { | 519 | } |
489 | return 1; | 520 | } |
490 | } | 521 | } |
491 | 522 | ||
492 | /* is it in the current transaction. This should never happen */ | 523 | bl = bmap_nr * (p_s_sb->s_blocksize << 3) + bit_nr; |
493 | if ((cn = get_journal_hash_dev(p_s_sb, journal->j_hash_table, bl))) { | 524 | /* is it in any old transactions? */ |
494 | BUG(); | 525 | if (search_all |
495 | return 1; | 526 | && (cn = |
496 | } | 527 | get_journal_hash_dev(p_s_sb, journal->j_list_hash_table, bl))) { |
497 | 528 | return 1; | |
498 | PROC_INFO_INC( p_s_sb, journal.in_journal_reusable ); | 529 | } |
499 | /* safe for reuse */ | 530 | |
500 | return 0 ; | 531 | /* is it in the current transaction. This should never happen */ |
532 | if ((cn = get_journal_hash_dev(p_s_sb, journal->j_hash_table, bl))) { | ||
533 | BUG(); | ||
534 | return 1; | ||
535 | } | ||
536 | |||
537 | PROC_INFO_INC(p_s_sb, journal.in_journal_reusable); | ||
538 | /* safe for reuse */ | ||
539 | return 0; | ||
501 | } | 540 | } |
502 | 541 | ||
503 | /* insert cn into table | 542 | /* insert cn into table |
504 | */ | 543 | */ |
505 | static inline void insert_journal_hash(struct reiserfs_journal_cnode **table, struct reiserfs_journal_cnode *cn) { | 544 | static inline void insert_journal_hash(struct reiserfs_journal_cnode **table, |
506 | struct reiserfs_journal_cnode *cn_orig ; | 545 | struct reiserfs_journal_cnode *cn) |
546 | { | ||
547 | struct reiserfs_journal_cnode *cn_orig; | ||
507 | 548 | ||
508 | cn_orig = journal_hash(table, cn->sb, cn->blocknr) ; | 549 | cn_orig = journal_hash(table, cn->sb, cn->blocknr); |
509 | cn->hnext = cn_orig ; | 550 | cn->hnext = cn_orig; |
510 | cn->hprev = NULL ; | 551 | cn->hprev = NULL; |
511 | if (cn_orig) { | 552 | if (cn_orig) { |
512 | cn_orig->hprev = cn ; | 553 | cn_orig->hprev = cn; |
513 | } | 554 | } |
514 | journal_hash(table, cn->sb, cn->blocknr) = cn ; | 555 | journal_hash(table, cn->sb, cn->blocknr) = cn; |
515 | } | 556 | } |
516 | 557 | ||
517 | /* lock the current transaction */ | 558 | /* lock the current transaction */ |
518 | inline static void lock_journal(struct super_block *p_s_sb) { | 559 | inline static void lock_journal(struct super_block *p_s_sb) |
519 | PROC_INFO_INC( p_s_sb, journal.lock_journal ); | 560 | { |
520 | down(&SB_JOURNAL(p_s_sb)->j_lock); | 561 | PROC_INFO_INC(p_s_sb, journal.lock_journal); |
562 | down(&SB_JOURNAL(p_s_sb)->j_lock); | ||
521 | } | 563 | } |
522 | 564 | ||
523 | /* unlock the current transaction */ | 565 | /* unlock the current transaction */ |
524 | inline static void unlock_journal(struct super_block *p_s_sb) { | 566 | inline static void unlock_journal(struct super_block *p_s_sb) |
525 | up(&SB_JOURNAL(p_s_sb)->j_lock); | 567 | { |
568 | up(&SB_JOURNAL(p_s_sb)->j_lock); | ||
526 | } | 569 | } |
527 | 570 | ||
528 | static inline void get_journal_list(struct reiserfs_journal_list *jl) | 571 | static inline void get_journal_list(struct reiserfs_journal_list *jl) |
529 | { | 572 | { |
530 | jl->j_refcount++; | 573 | jl->j_refcount++; |
531 | } | 574 | } |
532 | 575 | ||
533 | static inline void put_journal_list(struct super_block *s, | 576 | static inline void put_journal_list(struct super_block *s, |
534 | struct reiserfs_journal_list *jl) | 577 | struct reiserfs_journal_list *jl) |
535 | { | 578 | { |
536 | if (jl->j_refcount < 1) { | 579 | if (jl->j_refcount < 1) { |
537 | reiserfs_panic (s, "trans id %lu, refcount at %d", jl->j_trans_id, | 580 | reiserfs_panic(s, "trans id %lu, refcount at %d", |
538 | jl->j_refcount); | 581 | jl->j_trans_id, jl->j_refcount); |
539 | } | 582 | } |
540 | if (--jl->j_refcount == 0) | 583 | if (--jl->j_refcount == 0) |
541 | reiserfs_kfree(jl, sizeof(struct reiserfs_journal_list), s); | 584 | reiserfs_kfree(jl, sizeof(struct reiserfs_journal_list), s); |
542 | } | 585 | } |
543 | 586 | ||
544 | /* | 587 | /* |
@@ -546,358 +589,375 @@ static inline void put_journal_list(struct super_block *s, | |||
546 | ** it gets called by flush_commit_list, and cleans up any data stored about blocks freed during a | 589 | ** it gets called by flush_commit_list, and cleans up any data stored about blocks freed during a |
547 | ** transaction. | 590 | ** transaction. |
548 | */ | 591 | */ |
549 | static void cleanup_freed_for_journal_list(struct super_block *p_s_sb, struct reiserfs_journal_list *jl) { | 592 | static void cleanup_freed_for_journal_list(struct super_block *p_s_sb, |
593 | struct reiserfs_journal_list *jl) | ||
594 | { | ||
550 | 595 | ||
551 | struct reiserfs_list_bitmap *jb = jl->j_list_bitmap ; | 596 | struct reiserfs_list_bitmap *jb = jl->j_list_bitmap; |
552 | if (jb) { | 597 | if (jb) { |
553 | cleanup_bitmap_list(p_s_sb, jb) ; | 598 | cleanup_bitmap_list(p_s_sb, jb); |
554 | } | 599 | } |
555 | jl->j_list_bitmap->journal_list = NULL ; | 600 | jl->j_list_bitmap->journal_list = NULL; |
556 | jl->j_list_bitmap = NULL ; | 601 | jl->j_list_bitmap = NULL; |
557 | } | 602 | } |
558 | 603 | ||
559 | static int journal_list_still_alive(struct super_block *s, | 604 | static int journal_list_still_alive(struct super_block *s, |
560 | unsigned long trans_id) | 605 | unsigned long trans_id) |
561 | { | 606 | { |
562 | struct reiserfs_journal *journal = SB_JOURNAL (s); | 607 | struct reiserfs_journal *journal = SB_JOURNAL(s); |
563 | struct list_head *entry = &journal->j_journal_list; | 608 | struct list_head *entry = &journal->j_journal_list; |
564 | struct reiserfs_journal_list *jl; | 609 | struct reiserfs_journal_list *jl; |
565 | 610 | ||
566 | if (!list_empty(entry)) { | 611 | if (!list_empty(entry)) { |
567 | jl = JOURNAL_LIST_ENTRY(entry->next); | 612 | jl = JOURNAL_LIST_ENTRY(entry->next); |
568 | if (jl->j_trans_id <= trans_id) { | 613 | if (jl->j_trans_id <= trans_id) { |
569 | return 1; | 614 | return 1; |
570 | } | 615 | } |
571 | } | 616 | } |
572 | return 0; | 617 | return 0; |
573 | } | 618 | } |
574 | 619 | ||
575 | static void reiserfs_end_buffer_io_sync(struct buffer_head *bh, int uptodate) { | 620 | static void reiserfs_end_buffer_io_sync(struct buffer_head *bh, int uptodate) |
576 | char b[BDEVNAME_SIZE]; | 621 | { |
577 | 622 | char b[BDEVNAME_SIZE]; | |
578 | if (buffer_journaled(bh)) { | 623 | |
579 | reiserfs_warning(NULL, "clm-2084: pinned buffer %lu:%s sent to disk", | 624 | if (buffer_journaled(bh)) { |
580 | bh->b_blocknr, bdevname(bh->b_bdev, b)) ; | 625 | reiserfs_warning(NULL, |
581 | } | 626 | "clm-2084: pinned buffer %lu:%s sent to disk", |
582 | if (uptodate) | 627 | bh->b_blocknr, bdevname(bh->b_bdev, b)); |
583 | set_buffer_uptodate(bh) ; | 628 | } |
584 | else | 629 | if (uptodate) |
585 | clear_buffer_uptodate(bh) ; | 630 | set_buffer_uptodate(bh); |
586 | unlock_buffer(bh) ; | 631 | else |
587 | put_bh(bh) ; | 632 | clear_buffer_uptodate(bh); |
588 | } | 633 | unlock_buffer(bh); |
589 | 634 | put_bh(bh); | |
590 | static void reiserfs_end_ordered_io(struct buffer_head *bh, int uptodate) { | 635 | } |
591 | if (uptodate) | 636 | |
592 | set_buffer_uptodate(bh) ; | 637 | static void reiserfs_end_ordered_io(struct buffer_head *bh, int uptodate) |
593 | else | 638 | { |
594 | clear_buffer_uptodate(bh) ; | 639 | if (uptodate) |
595 | unlock_buffer(bh) ; | 640 | set_buffer_uptodate(bh); |
596 | put_bh(bh) ; | 641 | else |
597 | } | 642 | clear_buffer_uptodate(bh); |
598 | 643 | unlock_buffer(bh); | |
599 | static void submit_logged_buffer(struct buffer_head *bh) { | 644 | put_bh(bh); |
600 | get_bh(bh) ; | 645 | } |
601 | bh->b_end_io = reiserfs_end_buffer_io_sync ; | 646 | |
602 | clear_buffer_journal_new (bh); | 647 | static void submit_logged_buffer(struct buffer_head *bh) |
603 | clear_buffer_dirty(bh) ; | 648 | { |
604 | if (!test_clear_buffer_journal_test (bh)) | 649 | get_bh(bh); |
605 | BUG(); | 650 | bh->b_end_io = reiserfs_end_buffer_io_sync; |
606 | if (!buffer_uptodate(bh)) | 651 | clear_buffer_journal_new(bh); |
607 | BUG(); | 652 | clear_buffer_dirty(bh); |
608 | submit_bh(WRITE, bh) ; | 653 | if (!test_clear_buffer_journal_test(bh)) |
609 | } | 654 | BUG(); |
610 | 655 | if (!buffer_uptodate(bh)) | |
611 | static void submit_ordered_buffer(struct buffer_head *bh) { | 656 | BUG(); |
612 | get_bh(bh) ; | 657 | submit_bh(WRITE, bh); |
613 | bh->b_end_io = reiserfs_end_ordered_io; | 658 | } |
614 | clear_buffer_dirty(bh) ; | 659 | |
615 | if (!buffer_uptodate(bh)) | 660 | static void submit_ordered_buffer(struct buffer_head *bh) |
616 | BUG(); | 661 | { |
617 | submit_bh(WRITE, bh) ; | 662 | get_bh(bh); |
618 | } | 663 | bh->b_end_io = reiserfs_end_ordered_io; |
619 | 664 | clear_buffer_dirty(bh); | |
620 | static int submit_barrier_buffer(struct buffer_head *bh) { | 665 | if (!buffer_uptodate(bh)) |
621 | get_bh(bh) ; | 666 | BUG(); |
622 | bh->b_end_io = reiserfs_end_ordered_io; | 667 | submit_bh(WRITE, bh); |
623 | clear_buffer_dirty(bh) ; | 668 | } |
624 | if (!buffer_uptodate(bh)) | 669 | |
625 | BUG(); | 670 | static int submit_barrier_buffer(struct buffer_head *bh) |
626 | return submit_bh(WRITE_BARRIER, bh) ; | 671 | { |
672 | get_bh(bh); | ||
673 | bh->b_end_io = reiserfs_end_ordered_io; | ||
674 | clear_buffer_dirty(bh); | ||
675 | if (!buffer_uptodate(bh)) | ||
676 | BUG(); | ||
677 | return submit_bh(WRITE_BARRIER, bh); | ||
627 | } | 678 | } |
628 | 679 | ||
629 | static void check_barrier_completion(struct super_block *s, | 680 | static void check_barrier_completion(struct super_block *s, |
630 | struct buffer_head *bh) { | 681 | struct buffer_head *bh) |
631 | if (buffer_eopnotsupp(bh)) { | 682 | { |
632 | clear_buffer_eopnotsupp(bh); | 683 | if (buffer_eopnotsupp(bh)) { |
633 | disable_barrier(s); | 684 | clear_buffer_eopnotsupp(bh); |
634 | set_buffer_uptodate(bh); | 685 | disable_barrier(s); |
635 | set_buffer_dirty(bh); | 686 | set_buffer_uptodate(bh); |
636 | sync_dirty_buffer(bh); | 687 | set_buffer_dirty(bh); |
637 | } | 688 | sync_dirty_buffer(bh); |
689 | } | ||
638 | } | 690 | } |
639 | 691 | ||
640 | #define CHUNK_SIZE 32 | 692 | #define CHUNK_SIZE 32 |
641 | struct buffer_chunk { | 693 | struct buffer_chunk { |
642 | struct buffer_head *bh[CHUNK_SIZE]; | 694 | struct buffer_head *bh[CHUNK_SIZE]; |
643 | int nr; | 695 | int nr; |
644 | }; | 696 | }; |
645 | 697 | ||
646 | static void write_chunk(struct buffer_chunk *chunk) { | 698 | static void write_chunk(struct buffer_chunk *chunk) |
647 | int i; | 699 | { |
648 | get_fs_excl(); | 700 | int i; |
649 | for (i = 0; i < chunk->nr ; i++) { | 701 | get_fs_excl(); |
650 | submit_logged_buffer(chunk->bh[i]) ; | 702 | for (i = 0; i < chunk->nr; i++) { |
651 | } | 703 | submit_logged_buffer(chunk->bh[i]); |
652 | chunk->nr = 0; | 704 | } |
653 | put_fs_excl(); | 705 | chunk->nr = 0; |
706 | put_fs_excl(); | ||
654 | } | 707 | } |
655 | 708 | ||
656 | static void write_ordered_chunk(struct buffer_chunk *chunk) { | 709 | static void write_ordered_chunk(struct buffer_chunk *chunk) |
657 | int i; | 710 | { |
658 | get_fs_excl(); | 711 | int i; |
659 | for (i = 0; i < chunk->nr ; i++) { | 712 | get_fs_excl(); |
660 | submit_ordered_buffer(chunk->bh[i]) ; | 713 | for (i = 0; i < chunk->nr; i++) { |
661 | } | 714 | submit_ordered_buffer(chunk->bh[i]); |
662 | chunk->nr = 0; | 715 | } |
663 | put_fs_excl(); | 716 | chunk->nr = 0; |
717 | put_fs_excl(); | ||
664 | } | 718 | } |
665 | 719 | ||
666 | static int add_to_chunk(struct buffer_chunk *chunk, struct buffer_head *bh, | 720 | static int add_to_chunk(struct buffer_chunk *chunk, struct buffer_head *bh, |
667 | spinlock_t *lock, | 721 | spinlock_t * lock, void (fn) (struct buffer_chunk *)) |
668 | void (fn)(struct buffer_chunk *)) | ||
669 | { | 722 | { |
670 | int ret = 0; | 723 | int ret = 0; |
671 | if (chunk->nr >= CHUNK_SIZE) | 724 | if (chunk->nr >= CHUNK_SIZE) |
672 | BUG(); | 725 | BUG(); |
673 | chunk->bh[chunk->nr++] = bh; | 726 | chunk->bh[chunk->nr++] = bh; |
674 | if (chunk->nr >= CHUNK_SIZE) { | 727 | if (chunk->nr >= CHUNK_SIZE) { |
675 | ret = 1; | 728 | ret = 1; |
676 | if (lock) | 729 | if (lock) |
677 | spin_unlock(lock); | 730 | spin_unlock(lock); |
678 | fn(chunk); | 731 | fn(chunk); |
679 | if (lock) | 732 | if (lock) |
680 | spin_lock(lock); | 733 | spin_lock(lock); |
681 | } | 734 | } |
682 | return ret; | 735 | return ret; |
683 | } | 736 | } |
684 | 737 | ||
685 | |||
686 | static atomic_t nr_reiserfs_jh = ATOMIC_INIT(0); | 738 | static atomic_t nr_reiserfs_jh = ATOMIC_INIT(0); |
687 | static struct reiserfs_jh *alloc_jh(void) { | 739 | static struct reiserfs_jh *alloc_jh(void) |
688 | struct reiserfs_jh *jh; | 740 | { |
689 | while(1) { | 741 | struct reiserfs_jh *jh; |
690 | jh = kmalloc(sizeof(*jh), GFP_NOFS); | 742 | while (1) { |
691 | if (jh) { | 743 | jh = kmalloc(sizeof(*jh), GFP_NOFS); |
692 | atomic_inc(&nr_reiserfs_jh); | 744 | if (jh) { |
693 | return jh; | 745 | atomic_inc(&nr_reiserfs_jh); |
746 | return jh; | ||
747 | } | ||
748 | yield(); | ||
694 | } | 749 | } |
695 | yield(); | ||
696 | } | ||
697 | } | 750 | } |
698 | 751 | ||
699 | /* | 752 | /* |
700 | * we want to free the jh when the buffer has been written | 753 | * we want to free the jh when the buffer has been written |
701 | * and waited on | 754 | * and waited on |
702 | */ | 755 | */ |
703 | void reiserfs_free_jh(struct buffer_head *bh) { | 756 | void reiserfs_free_jh(struct buffer_head *bh) |
704 | struct reiserfs_jh *jh; | 757 | { |
705 | 758 | struct reiserfs_jh *jh; | |
706 | jh = bh->b_private; | 759 | |
707 | if (jh) { | 760 | jh = bh->b_private; |
708 | bh->b_private = NULL; | 761 | if (jh) { |
709 | jh->bh = NULL; | 762 | bh->b_private = NULL; |
710 | list_del_init(&jh->list); | 763 | jh->bh = NULL; |
711 | kfree(jh); | 764 | list_del_init(&jh->list); |
712 | if (atomic_read(&nr_reiserfs_jh) <= 0) | 765 | kfree(jh); |
713 | BUG(); | 766 | if (atomic_read(&nr_reiserfs_jh) <= 0) |
714 | atomic_dec(&nr_reiserfs_jh); | 767 | BUG(); |
715 | put_bh(bh); | 768 | atomic_dec(&nr_reiserfs_jh); |
716 | } | 769 | put_bh(bh); |
770 | } | ||
717 | } | 771 | } |
718 | 772 | ||
719 | static inline int __add_jh(struct reiserfs_journal *j, struct buffer_head *bh, | 773 | static inline int __add_jh(struct reiserfs_journal *j, struct buffer_head *bh, |
720 | int tail) | 774 | int tail) |
721 | { | 775 | { |
722 | struct reiserfs_jh *jh; | 776 | struct reiserfs_jh *jh; |
723 | 777 | ||
724 | if (bh->b_private) { | 778 | if (bh->b_private) { |
725 | spin_lock(&j->j_dirty_buffers_lock); | 779 | spin_lock(&j->j_dirty_buffers_lock); |
726 | if (!bh->b_private) { | 780 | if (!bh->b_private) { |
727 | spin_unlock(&j->j_dirty_buffers_lock); | 781 | spin_unlock(&j->j_dirty_buffers_lock); |
728 | goto no_jh; | 782 | goto no_jh; |
783 | } | ||
784 | jh = bh->b_private; | ||
785 | list_del_init(&jh->list); | ||
786 | } else { | ||
787 | no_jh: | ||
788 | get_bh(bh); | ||
789 | jh = alloc_jh(); | ||
790 | spin_lock(&j->j_dirty_buffers_lock); | ||
791 | /* buffer must be locked for __add_jh, should be able to have | ||
792 | * two adds at the same time | ||
793 | */ | ||
794 | if (bh->b_private) | ||
795 | BUG(); | ||
796 | jh->bh = bh; | ||
797 | bh->b_private = jh; | ||
729 | } | 798 | } |
730 | jh = bh->b_private; | 799 | jh->jl = j->j_current_jl; |
731 | list_del_init(&jh->list); | 800 | if (tail) |
732 | } else { | 801 | list_add_tail(&jh->list, &jh->jl->j_tail_bh_list); |
733 | no_jh: | 802 | else { |
734 | get_bh(bh); | 803 | list_add_tail(&jh->list, &jh->jl->j_bh_list); |
735 | jh = alloc_jh(); | 804 | } |
736 | spin_lock(&j->j_dirty_buffers_lock); | 805 | spin_unlock(&j->j_dirty_buffers_lock); |
737 | /* buffer must be locked for __add_jh, should be able to have | 806 | return 0; |
738 | * two adds at the same time | ||
739 | */ | ||
740 | if (bh->b_private) | ||
741 | BUG(); | ||
742 | jh->bh = bh; | ||
743 | bh->b_private = jh; | ||
744 | } | ||
745 | jh->jl = j->j_current_jl; | ||
746 | if (tail) | ||
747 | list_add_tail(&jh->list, &jh->jl->j_tail_bh_list); | ||
748 | else { | ||
749 | list_add_tail(&jh->list, &jh->jl->j_bh_list); | ||
750 | } | ||
751 | spin_unlock(&j->j_dirty_buffers_lock); | ||
752 | return 0; | ||
753 | } | 807 | } |
754 | 808 | ||
755 | int reiserfs_add_tail_list(struct inode *inode, struct buffer_head *bh) { | 809 | int reiserfs_add_tail_list(struct inode *inode, struct buffer_head *bh) |
756 | return __add_jh(SB_JOURNAL(inode->i_sb), bh, 1); | 810 | { |
811 | return __add_jh(SB_JOURNAL(inode->i_sb), bh, 1); | ||
757 | } | 812 | } |
758 | int reiserfs_add_ordered_list(struct inode *inode, struct buffer_head *bh) { | 813 | int reiserfs_add_ordered_list(struct inode *inode, struct buffer_head *bh) |
759 | return __add_jh(SB_JOURNAL(inode->i_sb), bh, 0); | 814 | { |
815 | return __add_jh(SB_JOURNAL(inode->i_sb), bh, 0); | ||
760 | } | 816 | } |
761 | 817 | ||
762 | #define JH_ENTRY(l) list_entry((l), struct reiserfs_jh, list) | 818 | #define JH_ENTRY(l) list_entry((l), struct reiserfs_jh, list) |
763 | static int write_ordered_buffers(spinlock_t *lock, | 819 | static int write_ordered_buffers(spinlock_t * lock, |
764 | struct reiserfs_journal *j, | 820 | struct reiserfs_journal *j, |
765 | struct reiserfs_journal_list *jl, | 821 | struct reiserfs_journal_list *jl, |
766 | struct list_head *list) | 822 | struct list_head *list) |
767 | { | 823 | { |
768 | struct buffer_head *bh; | 824 | struct buffer_head *bh; |
769 | struct reiserfs_jh *jh; | 825 | struct reiserfs_jh *jh; |
770 | int ret = j->j_errno; | 826 | int ret = j->j_errno; |
771 | struct buffer_chunk chunk; | 827 | struct buffer_chunk chunk; |
772 | struct list_head tmp; | 828 | struct list_head tmp; |
773 | INIT_LIST_HEAD(&tmp); | 829 | INIT_LIST_HEAD(&tmp); |
774 | 830 | ||
775 | chunk.nr = 0; | 831 | chunk.nr = 0; |
776 | spin_lock(lock); | 832 | spin_lock(lock); |
777 | while(!list_empty(list)) { | 833 | while (!list_empty(list)) { |
778 | jh = JH_ENTRY(list->next); | 834 | jh = JH_ENTRY(list->next); |
779 | bh = jh->bh; | 835 | bh = jh->bh; |
780 | get_bh(bh); | 836 | get_bh(bh); |
781 | if (test_set_buffer_locked(bh)) { | 837 | if (test_set_buffer_locked(bh)) { |
782 | if (!buffer_dirty(bh)) { | 838 | if (!buffer_dirty(bh)) { |
783 | list_del_init(&jh->list); | 839 | list_del_init(&jh->list); |
784 | list_add(&jh->list, &tmp); | 840 | list_add(&jh->list, &tmp); |
785 | goto loop_next; | 841 | goto loop_next; |
786 | } | 842 | } |
787 | spin_unlock(lock); | 843 | spin_unlock(lock); |
788 | if (chunk.nr) | 844 | if (chunk.nr) |
845 | write_ordered_chunk(&chunk); | ||
846 | wait_on_buffer(bh); | ||
847 | cond_resched(); | ||
848 | spin_lock(lock); | ||
849 | goto loop_next; | ||
850 | } | ||
851 | if (buffer_dirty(bh)) { | ||
852 | list_del_init(&jh->list); | ||
853 | list_add(&jh->list, &tmp); | ||
854 | add_to_chunk(&chunk, bh, lock, write_ordered_chunk); | ||
855 | } else { | ||
856 | reiserfs_free_jh(bh); | ||
857 | unlock_buffer(bh); | ||
858 | } | ||
859 | loop_next: | ||
860 | put_bh(bh); | ||
861 | cond_resched_lock(lock); | ||
862 | } | ||
863 | if (chunk.nr) { | ||
864 | spin_unlock(lock); | ||
789 | write_ordered_chunk(&chunk); | 865 | write_ordered_chunk(&chunk); |
790 | wait_on_buffer(bh); | 866 | spin_lock(lock); |
791 | cond_resched(); | ||
792 | spin_lock(lock); | ||
793 | goto loop_next; | ||
794 | } | ||
795 | if (buffer_dirty(bh)) { | ||
796 | list_del_init(&jh->list); | ||
797 | list_add(&jh->list, &tmp); | ||
798 | add_to_chunk(&chunk, bh, lock, write_ordered_chunk); | ||
799 | } else { | ||
800 | reiserfs_free_jh(bh); | ||
801 | unlock_buffer(bh); | ||
802 | } | 867 | } |
803 | loop_next: | 868 | while (!list_empty(&tmp)) { |
804 | put_bh(bh); | 869 | jh = JH_ENTRY(tmp.prev); |
805 | cond_resched_lock(lock); | 870 | bh = jh->bh; |
806 | } | 871 | get_bh(bh); |
807 | if (chunk.nr) { | 872 | reiserfs_free_jh(bh); |
808 | spin_unlock(lock); | 873 | |
809 | write_ordered_chunk(&chunk); | 874 | if (buffer_locked(bh)) { |
810 | spin_lock(lock); | 875 | spin_unlock(lock); |
811 | } | 876 | wait_on_buffer(bh); |
812 | while(!list_empty(&tmp)) { | 877 | spin_lock(lock); |
813 | jh = JH_ENTRY(tmp.prev); | 878 | } |
814 | bh = jh->bh; | 879 | if (!buffer_uptodate(bh)) { |
815 | get_bh(bh); | 880 | ret = -EIO; |
816 | reiserfs_free_jh(bh); | 881 | } |
817 | 882 | put_bh(bh); | |
818 | if (buffer_locked(bh)) { | 883 | cond_resched_lock(lock); |
819 | spin_unlock(lock); | ||
820 | wait_on_buffer(bh); | ||
821 | spin_lock(lock); | ||
822 | } | 884 | } |
823 | if (!buffer_uptodate(bh)) { | 885 | spin_unlock(lock); |
824 | ret = -EIO; | 886 | return ret; |
825 | } | 887 | } |
826 | put_bh(bh); | ||
827 | cond_resched_lock(lock); | ||
828 | } | ||
829 | spin_unlock(lock); | ||
830 | return ret; | ||
831 | } | ||
832 | |||
833 | static int flush_older_commits(struct super_block *s, struct reiserfs_journal_list *jl) { | ||
834 | struct reiserfs_journal *journal = SB_JOURNAL (s); | ||
835 | struct reiserfs_journal_list *other_jl; | ||
836 | struct reiserfs_journal_list *first_jl; | ||
837 | struct list_head *entry; | ||
838 | unsigned long trans_id = jl->j_trans_id; | ||
839 | unsigned long other_trans_id; | ||
840 | unsigned long first_trans_id; | ||
841 | |||
842 | find_first: | ||
843 | /* | ||
844 | * first we walk backwards to find the oldest uncommitted transation | ||
845 | */ | ||
846 | first_jl = jl; | ||
847 | entry = jl->j_list.prev; | ||
848 | while(1) { | ||
849 | other_jl = JOURNAL_LIST_ENTRY(entry); | ||
850 | if (entry == &journal->j_journal_list || | ||
851 | atomic_read(&other_jl->j_older_commits_done)) | ||
852 | break; | ||
853 | |||
854 | first_jl = other_jl; | ||
855 | entry = other_jl->j_list.prev; | ||
856 | } | ||
857 | |||
858 | /* if we didn't find any older uncommitted transactions, return now */ | ||
859 | if (first_jl == jl) { | ||
860 | return 0; | ||
861 | } | ||
862 | |||
863 | first_trans_id = first_jl->j_trans_id; | ||
864 | 888 | ||
865 | entry = &first_jl->j_list; | 889 | static int flush_older_commits(struct super_block *s, |
866 | while(1) { | 890 | struct reiserfs_journal_list *jl) |
867 | other_jl = JOURNAL_LIST_ENTRY(entry); | 891 | { |
868 | other_trans_id = other_jl->j_trans_id; | 892 | struct reiserfs_journal *journal = SB_JOURNAL(s); |
893 | struct reiserfs_journal_list *other_jl; | ||
894 | struct reiserfs_journal_list *first_jl; | ||
895 | struct list_head *entry; | ||
896 | unsigned long trans_id = jl->j_trans_id; | ||
897 | unsigned long other_trans_id; | ||
898 | unsigned long first_trans_id; | ||
899 | |||
900 | find_first: | ||
901 | /* | ||
902 | * first we walk backwards to find the oldest uncommitted transation | ||
903 | */ | ||
904 | first_jl = jl; | ||
905 | entry = jl->j_list.prev; | ||
906 | while (1) { | ||
907 | other_jl = JOURNAL_LIST_ENTRY(entry); | ||
908 | if (entry == &journal->j_journal_list || | ||
909 | atomic_read(&other_jl->j_older_commits_done)) | ||
910 | break; | ||
869 | 911 | ||
870 | if (other_trans_id < trans_id) { | 912 | first_jl = other_jl; |
871 | if (atomic_read(&other_jl->j_commit_left) != 0) { | 913 | entry = other_jl->j_list.prev; |
872 | flush_commit_list(s, other_jl, 0); | 914 | } |
873 | 915 | ||
874 | /* list we were called with is gone, return */ | 916 | /* if we didn't find any older uncommitted transactions, return now */ |
875 | if (!journal_list_still_alive(s, trans_id)) | 917 | if (first_jl == jl) { |
876 | return 1; | 918 | return 0; |
919 | } | ||
877 | 920 | ||
878 | /* the one we just flushed is gone, this means all | 921 | first_trans_id = first_jl->j_trans_id; |
879 | * older lists are also gone, so first_jl is no longer | 922 | |
880 | * valid either. Go back to the beginning. | 923 | entry = &first_jl->j_list; |
881 | */ | 924 | while (1) { |
882 | if (!journal_list_still_alive(s, other_trans_id)) { | 925 | other_jl = JOURNAL_LIST_ENTRY(entry); |
883 | goto find_first; | 926 | other_trans_id = other_jl->j_trans_id; |
927 | |||
928 | if (other_trans_id < trans_id) { | ||
929 | if (atomic_read(&other_jl->j_commit_left) != 0) { | ||
930 | flush_commit_list(s, other_jl, 0); | ||
931 | |||
932 | /* list we were called with is gone, return */ | ||
933 | if (!journal_list_still_alive(s, trans_id)) | ||
934 | return 1; | ||
935 | |||
936 | /* the one we just flushed is gone, this means all | ||
937 | * older lists are also gone, so first_jl is no longer | ||
938 | * valid either. Go back to the beginning. | ||
939 | */ | ||
940 | if (!journal_list_still_alive | ||
941 | (s, other_trans_id)) { | ||
942 | goto find_first; | ||
943 | } | ||
944 | } | ||
945 | entry = entry->next; | ||
946 | if (entry == &journal->j_journal_list) | ||
947 | return 0; | ||
948 | } else { | ||
949 | return 0; | ||
884 | } | 950 | } |
885 | } | ||
886 | entry = entry->next; | ||
887 | if (entry == &journal->j_journal_list) | ||
888 | return 0; | ||
889 | } else { | ||
890 | return 0; | ||
891 | } | 951 | } |
892 | } | 952 | return 0; |
893 | return 0; | ||
894 | } | 953 | } |
895 | int reiserfs_async_progress_wait(struct super_block *s) { | 954 | int reiserfs_async_progress_wait(struct super_block *s) |
896 | DEFINE_WAIT(wait); | 955 | { |
897 | struct reiserfs_journal *j = SB_JOURNAL(s); | 956 | DEFINE_WAIT(wait); |
898 | if (atomic_read(&j->j_async_throttle)) | 957 | struct reiserfs_journal *j = SB_JOURNAL(s); |
899 | blk_congestion_wait(WRITE, HZ/10); | 958 | if (atomic_read(&j->j_async_throttle)) |
900 | return 0; | 959 | blk_congestion_wait(WRITE, HZ / 10); |
960 | return 0; | ||
901 | } | 961 | } |
902 | 962 | ||
903 | /* | 963 | /* |
@@ -907,212 +967,225 @@ int reiserfs_async_progress_wait(struct super_block *s) { | |||
907 | ** Before the commit block can by written, every other log block must be safely on disk | 967 | ** Before the commit block can by written, every other log block must be safely on disk |
908 | ** | 968 | ** |
909 | */ | 969 | */ |
910 | static int flush_commit_list(struct super_block *s, struct reiserfs_journal_list *jl, int flushall) { | 970 | static int flush_commit_list(struct super_block *s, |
911 | int i; | 971 | struct reiserfs_journal_list *jl, int flushall) |
912 | int bn ; | 972 | { |
913 | struct buffer_head *tbh = NULL ; | 973 | int i; |
914 | unsigned long trans_id = jl->j_trans_id; | 974 | int bn; |
915 | struct reiserfs_journal *journal = SB_JOURNAL (s); | 975 | struct buffer_head *tbh = NULL; |
916 | int barrier = 0; | 976 | unsigned long trans_id = jl->j_trans_id; |
917 | int retval = 0; | 977 | struct reiserfs_journal *journal = SB_JOURNAL(s); |
918 | 978 | int barrier = 0; | |
919 | reiserfs_check_lock_depth(s, "flush_commit_list") ; | 979 | int retval = 0; |
920 | 980 | ||
921 | if (atomic_read(&jl->j_older_commits_done)) { | 981 | reiserfs_check_lock_depth(s, "flush_commit_list"); |
922 | return 0 ; | 982 | |
923 | } | 983 | if (atomic_read(&jl->j_older_commits_done)) { |
924 | 984 | return 0; | |
925 | get_fs_excl(); | 985 | } |
926 | 986 | ||
927 | /* before we can put our commit blocks on disk, we have to make sure everyone older than | 987 | get_fs_excl(); |
928 | ** us is on disk too | 988 | |
929 | */ | 989 | /* before we can put our commit blocks on disk, we have to make sure everyone older than |
930 | BUG_ON (jl->j_len <= 0); | 990 | ** us is on disk too |
931 | BUG_ON (trans_id == journal->j_trans_id); | 991 | */ |
932 | 992 | BUG_ON(jl->j_len <= 0); | |
933 | get_journal_list(jl); | 993 | BUG_ON(trans_id == journal->j_trans_id); |
934 | if (flushall) { | 994 | |
935 | if (flush_older_commits(s, jl) == 1) { | 995 | get_journal_list(jl); |
936 | /* list disappeared during flush_older_commits. return */ | 996 | if (flushall) { |
937 | goto put_jl; | 997 | if (flush_older_commits(s, jl) == 1) { |
938 | } | 998 | /* list disappeared during flush_older_commits. return */ |
939 | } | 999 | goto put_jl; |
940 | 1000 | } | |
941 | /* make sure nobody is trying to flush this one at the same time */ | 1001 | } |
942 | down(&jl->j_commit_lock); | 1002 | |
943 | if (!journal_list_still_alive(s, trans_id)) { | 1003 | /* make sure nobody is trying to flush this one at the same time */ |
944 | up(&jl->j_commit_lock); | 1004 | down(&jl->j_commit_lock); |
945 | goto put_jl; | 1005 | if (!journal_list_still_alive(s, trans_id)) { |
946 | } | 1006 | up(&jl->j_commit_lock); |
947 | BUG_ON (jl->j_trans_id == 0); | 1007 | goto put_jl; |
948 | 1008 | } | |
949 | /* this commit is done, exit */ | 1009 | BUG_ON(jl->j_trans_id == 0); |
950 | if (atomic_read(&(jl->j_commit_left)) <= 0) { | 1010 | |
951 | if (flushall) { | 1011 | /* this commit is done, exit */ |
952 | atomic_set(&(jl->j_older_commits_done), 1) ; | 1012 | if (atomic_read(&(jl->j_commit_left)) <= 0) { |
953 | } | 1013 | if (flushall) { |
954 | up(&jl->j_commit_lock); | 1014 | atomic_set(&(jl->j_older_commits_done), 1); |
955 | goto put_jl; | 1015 | } |
956 | } | 1016 | up(&jl->j_commit_lock); |
957 | 1017 | goto put_jl; | |
958 | if (!list_empty(&jl->j_bh_list)) { | 1018 | } |
959 | unlock_kernel(); | 1019 | |
960 | write_ordered_buffers(&journal->j_dirty_buffers_lock, | 1020 | if (!list_empty(&jl->j_bh_list)) { |
961 | journal, jl, &jl->j_bh_list); | 1021 | unlock_kernel(); |
962 | lock_kernel(); | 1022 | write_ordered_buffers(&journal->j_dirty_buffers_lock, |
963 | } | 1023 | journal, jl, &jl->j_bh_list); |
964 | BUG_ON (!list_empty(&jl->j_bh_list)); | 1024 | lock_kernel(); |
965 | /* | 1025 | } |
966 | * for the description block and all the log blocks, submit any buffers | 1026 | BUG_ON(!list_empty(&jl->j_bh_list)); |
967 | * that haven't already reached the disk | 1027 | /* |
968 | */ | 1028 | * for the description block and all the log blocks, submit any buffers |
969 | atomic_inc(&journal->j_async_throttle); | 1029 | * that haven't already reached the disk |
970 | for (i = 0 ; i < (jl->j_len + 1) ; i++) { | 1030 | */ |
971 | bn = SB_ONDISK_JOURNAL_1st_BLOCK(s) + (jl->j_start+i) % | 1031 | atomic_inc(&journal->j_async_throttle); |
972 | SB_ONDISK_JOURNAL_SIZE(s); | 1032 | for (i = 0; i < (jl->j_len + 1); i++) { |
973 | tbh = journal_find_get_block(s, bn) ; | 1033 | bn = SB_ONDISK_JOURNAL_1st_BLOCK(s) + (jl->j_start + i) % |
974 | if (buffer_dirty(tbh)) /* redundant, ll_rw_block() checks */ | 1034 | SB_ONDISK_JOURNAL_SIZE(s); |
975 | ll_rw_block(WRITE, 1, &tbh) ; | 1035 | tbh = journal_find_get_block(s, bn); |
976 | put_bh(tbh) ; | 1036 | if (buffer_dirty(tbh)) /* redundant, ll_rw_block() checks */ |
977 | } | 1037 | ll_rw_block(WRITE, 1, &tbh); |
978 | atomic_dec(&journal->j_async_throttle); | 1038 | put_bh(tbh); |
979 | 1039 | } | |
980 | /* wait on everything written so far before writing the commit | 1040 | atomic_dec(&journal->j_async_throttle); |
981 | * if we are in barrier mode, send the commit down now | 1041 | |
982 | */ | 1042 | /* wait on everything written so far before writing the commit |
983 | barrier = reiserfs_barrier_flush(s); | 1043 | * if we are in barrier mode, send the commit down now |
984 | if (barrier) { | 1044 | */ |
985 | int ret; | 1045 | barrier = reiserfs_barrier_flush(s); |
986 | lock_buffer(jl->j_commit_bh); | 1046 | if (barrier) { |
987 | ret = submit_barrier_buffer(jl->j_commit_bh); | 1047 | int ret; |
988 | if (ret == -EOPNOTSUPP) { | 1048 | lock_buffer(jl->j_commit_bh); |
989 | set_buffer_uptodate(jl->j_commit_bh); | 1049 | ret = submit_barrier_buffer(jl->j_commit_bh); |
990 | disable_barrier(s); | 1050 | if (ret == -EOPNOTSUPP) { |
991 | barrier = 0; | 1051 | set_buffer_uptodate(jl->j_commit_bh); |
992 | } | 1052 | disable_barrier(s); |
993 | } | 1053 | barrier = 0; |
994 | for (i = 0 ; i < (jl->j_len + 1) ; i++) { | 1054 | } |
995 | bn = SB_ONDISK_JOURNAL_1st_BLOCK(s) + | 1055 | } |
996 | (jl->j_start + i) % SB_ONDISK_JOURNAL_SIZE(s) ; | 1056 | for (i = 0; i < (jl->j_len + 1); i++) { |
997 | tbh = journal_find_get_block(s, bn) ; | 1057 | bn = SB_ONDISK_JOURNAL_1st_BLOCK(s) + |
998 | wait_on_buffer(tbh) ; | 1058 | (jl->j_start + i) % SB_ONDISK_JOURNAL_SIZE(s); |
999 | // since we're using ll_rw_blk above, it might have skipped over | 1059 | tbh = journal_find_get_block(s, bn); |
1000 | // a locked buffer. Double check here | 1060 | wait_on_buffer(tbh); |
1001 | // | 1061 | // since we're using ll_rw_blk above, it might have skipped over |
1002 | if (buffer_dirty(tbh)) /* redundant, sync_dirty_buffer() checks */ | 1062 | // a locked buffer. Double check here |
1003 | sync_dirty_buffer(tbh); | 1063 | // |
1004 | if (unlikely (!buffer_uptodate(tbh))) { | 1064 | if (buffer_dirty(tbh)) /* redundant, sync_dirty_buffer() checks */ |
1065 | sync_dirty_buffer(tbh); | ||
1066 | if (unlikely(!buffer_uptodate(tbh))) { | ||
1005 | #ifdef CONFIG_REISERFS_CHECK | 1067 | #ifdef CONFIG_REISERFS_CHECK |
1006 | reiserfs_warning(s, "journal-601, buffer write failed") ; | 1068 | reiserfs_warning(s, "journal-601, buffer write failed"); |
1007 | #endif | 1069 | #endif |
1008 | retval = -EIO; | 1070 | retval = -EIO; |
1009 | } | 1071 | } |
1010 | put_bh(tbh) ; /* once for journal_find_get_block */ | 1072 | put_bh(tbh); /* once for journal_find_get_block */ |
1011 | put_bh(tbh) ; /* once due to original getblk in do_journal_end */ | 1073 | put_bh(tbh); /* once due to original getblk in do_journal_end */ |
1012 | atomic_dec(&(jl->j_commit_left)) ; | 1074 | atomic_dec(&(jl->j_commit_left)); |
1013 | } | 1075 | } |
1014 | 1076 | ||
1015 | BUG_ON (atomic_read(&(jl->j_commit_left)) != 1); | 1077 | BUG_ON(atomic_read(&(jl->j_commit_left)) != 1); |
1016 | 1078 | ||
1017 | if (!barrier) { | 1079 | if (!barrier) { |
1018 | if (buffer_dirty(jl->j_commit_bh)) | 1080 | if (buffer_dirty(jl->j_commit_bh)) |
1019 | BUG(); | 1081 | BUG(); |
1020 | mark_buffer_dirty(jl->j_commit_bh) ; | 1082 | mark_buffer_dirty(jl->j_commit_bh); |
1021 | sync_dirty_buffer(jl->j_commit_bh) ; | 1083 | sync_dirty_buffer(jl->j_commit_bh); |
1022 | } else | 1084 | } else |
1023 | wait_on_buffer(jl->j_commit_bh); | 1085 | wait_on_buffer(jl->j_commit_bh); |
1024 | 1086 | ||
1025 | check_barrier_completion(s, jl->j_commit_bh); | 1087 | check_barrier_completion(s, jl->j_commit_bh); |
1026 | 1088 | ||
1027 | /* If there was a write error in the journal - we can't commit this | 1089 | /* If there was a write error in the journal - we can't commit this |
1028 | * transaction - it will be invalid and, if successful, will just end | 1090 | * transaction - it will be invalid and, if successful, will just end |
1029 | * up propogating the write error out to the filesystem. */ | 1091 | * up propogating the write error out to the filesystem. */ |
1030 | if (unlikely (!buffer_uptodate(jl->j_commit_bh))) { | 1092 | if (unlikely(!buffer_uptodate(jl->j_commit_bh))) { |
1031 | #ifdef CONFIG_REISERFS_CHECK | 1093 | #ifdef CONFIG_REISERFS_CHECK |
1032 | reiserfs_warning(s, "journal-615: buffer write failed") ; | 1094 | reiserfs_warning(s, "journal-615: buffer write failed"); |
1033 | #endif | 1095 | #endif |
1034 | retval = -EIO; | 1096 | retval = -EIO; |
1035 | } | 1097 | } |
1036 | bforget(jl->j_commit_bh) ; | 1098 | bforget(jl->j_commit_bh); |
1037 | if (journal->j_last_commit_id != 0 && | 1099 | if (journal->j_last_commit_id != 0 && |
1038 | (jl->j_trans_id - journal->j_last_commit_id) != 1) { | 1100 | (jl->j_trans_id - journal->j_last_commit_id) != 1) { |
1039 | reiserfs_warning(s, "clm-2200: last commit %lu, current %lu", | 1101 | reiserfs_warning(s, "clm-2200: last commit %lu, current %lu", |
1040 | journal->j_last_commit_id, | 1102 | journal->j_last_commit_id, jl->j_trans_id); |
1041 | jl->j_trans_id); | 1103 | } |
1042 | } | 1104 | journal->j_last_commit_id = jl->j_trans_id; |
1043 | journal->j_last_commit_id = jl->j_trans_id; | 1105 | |
1044 | 1106 | /* now, every commit block is on the disk. It is safe to allow blocks freed during this transaction to be reallocated */ | |
1045 | /* now, every commit block is on the disk. It is safe to allow blocks freed during this transaction to be reallocated */ | 1107 | cleanup_freed_for_journal_list(s, jl); |
1046 | cleanup_freed_for_journal_list(s, jl) ; | 1108 | |
1047 | 1109 | retval = retval ? retval : journal->j_errno; | |
1048 | retval = retval ? retval : journal->j_errno; | 1110 | |
1049 | 1111 | /* mark the metadata dirty */ | |
1050 | /* mark the metadata dirty */ | 1112 | if (!retval) |
1051 | if (!retval) | 1113 | dirty_one_transaction(s, jl); |
1052 | dirty_one_transaction(s, jl); | 1114 | atomic_dec(&(jl->j_commit_left)); |
1053 | atomic_dec(&(jl->j_commit_left)) ; | 1115 | |
1054 | 1116 | if (flushall) { | |
1055 | if (flushall) { | 1117 | atomic_set(&(jl->j_older_commits_done), 1); |
1056 | atomic_set(&(jl->j_older_commits_done), 1) ; | 1118 | } |
1057 | } | 1119 | up(&jl->j_commit_lock); |
1058 | up(&jl->j_commit_lock); | 1120 | put_jl: |
1059 | put_jl: | 1121 | put_journal_list(s, jl); |
1060 | put_journal_list(s, jl); | 1122 | |
1061 | 1123 | if (retval) | |
1062 | if (retval) | 1124 | reiserfs_abort(s, retval, "Journal write error in %s", |
1063 | reiserfs_abort (s, retval, "Journal write error in %s", __FUNCTION__); | 1125 | __FUNCTION__); |
1064 | put_fs_excl(); | 1126 | put_fs_excl(); |
1065 | return retval; | 1127 | return retval; |
1066 | } | 1128 | } |
1067 | 1129 | ||
1068 | /* | 1130 | /* |
1069 | ** flush_journal_list frequently needs to find a newer transaction for a given block. This does that, or | 1131 | ** flush_journal_list frequently needs to find a newer transaction for a given block. This does that, or |
1070 | ** returns NULL if it can't find anything | 1132 | ** returns NULL if it can't find anything |
1071 | */ | 1133 | */ |
1072 | static struct reiserfs_journal_list *find_newer_jl_for_cn(struct reiserfs_journal_cnode *cn) { | 1134 | static struct reiserfs_journal_list *find_newer_jl_for_cn(struct |
1073 | struct super_block *sb = cn->sb; | 1135 | reiserfs_journal_cnode |
1074 | b_blocknr_t blocknr = cn->blocknr ; | 1136 | *cn) |
1137 | { | ||
1138 | struct super_block *sb = cn->sb; | ||
1139 | b_blocknr_t blocknr = cn->blocknr; | ||
1075 | 1140 | ||
1076 | cn = cn->hprev ; | 1141 | cn = cn->hprev; |
1077 | while(cn) { | 1142 | while (cn) { |
1078 | if (cn->sb == sb && cn->blocknr == blocknr && cn->jlist) { | 1143 | if (cn->sb == sb && cn->blocknr == blocknr && cn->jlist) { |
1079 | return cn->jlist ; | 1144 | return cn->jlist; |
1080 | } | 1145 | } |
1081 | cn = cn->hprev ; | 1146 | cn = cn->hprev; |
1082 | } | 1147 | } |
1083 | return NULL ; | 1148 | return NULL; |
1084 | } | 1149 | } |
1085 | 1150 | ||
1086 | static void remove_journal_hash(struct super_block *, struct reiserfs_journal_cnode **, | 1151 | static void remove_journal_hash(struct super_block *, |
1087 | struct reiserfs_journal_list *, unsigned long, int); | 1152 | struct reiserfs_journal_cnode **, |
1153 | struct reiserfs_journal_list *, unsigned long, | ||
1154 | int); | ||
1088 | 1155 | ||
1089 | /* | 1156 | /* |
1090 | ** once all the real blocks have been flushed, it is safe to remove them from the | 1157 | ** once all the real blocks have been flushed, it is safe to remove them from the |
1091 | ** journal list for this transaction. Aside from freeing the cnode, this also allows the | 1158 | ** journal list for this transaction. Aside from freeing the cnode, this also allows the |
1092 | ** block to be reallocated for data blocks if it had been deleted. | 1159 | ** block to be reallocated for data blocks if it had been deleted. |
1093 | */ | 1160 | */ |
1094 | static void remove_all_from_journal_list(struct super_block *p_s_sb, struct reiserfs_journal_list *jl, int debug) { | 1161 | static void remove_all_from_journal_list(struct super_block *p_s_sb, |
1095 | struct reiserfs_journal *journal = SB_JOURNAL (p_s_sb); | 1162 | struct reiserfs_journal_list *jl, |
1096 | struct reiserfs_journal_cnode *cn, *last ; | 1163 | int debug) |
1097 | cn = jl->j_realblock ; | 1164 | { |
1098 | 1165 | struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb); | |
1099 | /* which is better, to lock once around the whole loop, or | 1166 | struct reiserfs_journal_cnode *cn, *last; |
1100 | ** to lock for each call to remove_journal_hash? | 1167 | cn = jl->j_realblock; |
1101 | */ | 1168 | |
1102 | while(cn) { | 1169 | /* which is better, to lock once around the whole loop, or |
1103 | if (cn->blocknr != 0) { | 1170 | ** to lock for each call to remove_journal_hash? |
1104 | if (debug) { | 1171 | */ |
1105 | reiserfs_warning (p_s_sb, "block %u, bh is %d, state %ld", cn->blocknr, | 1172 | while (cn) { |
1106 | cn->bh ? 1: 0, cn->state) ; | 1173 | if (cn->blocknr != 0) { |
1107 | } | 1174 | if (debug) { |
1108 | cn->state = 0 ; | 1175 | reiserfs_warning(p_s_sb, |
1109 | remove_journal_hash(p_s_sb, journal->j_list_hash_table, jl, cn->blocknr, 1) ; | 1176 | "block %u, bh is %d, state %ld", |
1110 | } | 1177 | cn->blocknr, cn->bh ? 1 : 0, |
1111 | last = cn ; | 1178 | cn->state); |
1112 | cn = cn->next ; | 1179 | } |
1113 | free_cnode(p_s_sb, last) ; | 1180 | cn->state = 0; |
1114 | } | 1181 | remove_journal_hash(p_s_sb, journal->j_list_hash_table, |
1115 | jl->j_realblock = NULL ; | 1182 | jl, cn->blocknr, 1); |
1183 | } | ||
1184 | last = cn; | ||
1185 | cn = cn->next; | ||
1186 | free_cnode(p_s_sb, last); | ||
1187 | } | ||
1188 | jl->j_realblock = NULL; | ||
1116 | } | 1189 | } |
1117 | 1190 | ||
1118 | /* | 1191 | /* |
@@ -1122,98 +1195,107 @@ static void remove_all_from_journal_list(struct super_block *p_s_sb, struct reis | |||
1122 | ** called by flush_journal_list, before it calls remove_all_from_journal_list | 1195 | ** called by flush_journal_list, before it calls remove_all_from_journal_list |
1123 | ** | 1196 | ** |
1124 | */ | 1197 | */ |
1125 | static int _update_journal_header_block(struct super_block *p_s_sb, unsigned long offset, unsigned long trans_id) { | 1198 | static int _update_journal_header_block(struct super_block *p_s_sb, |
1126 | struct reiserfs_journal_header *jh ; | 1199 | unsigned long offset, |
1127 | struct reiserfs_journal *journal = SB_JOURNAL (p_s_sb); | 1200 | unsigned long trans_id) |
1201 | { | ||
1202 | struct reiserfs_journal_header *jh; | ||
1203 | struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb); | ||
1128 | 1204 | ||
1129 | if (reiserfs_is_journal_aborted (journal)) | 1205 | if (reiserfs_is_journal_aborted(journal)) |
1130 | return -EIO; | 1206 | return -EIO; |
1131 | 1207 | ||
1132 | if (trans_id >= journal->j_last_flush_trans_id) { | 1208 | if (trans_id >= journal->j_last_flush_trans_id) { |
1133 | if (buffer_locked((journal->j_header_bh))) { | 1209 | if (buffer_locked((journal->j_header_bh))) { |
1134 | wait_on_buffer((journal->j_header_bh)) ; | 1210 | wait_on_buffer((journal->j_header_bh)); |
1135 | if (unlikely (!buffer_uptodate(journal->j_header_bh))) { | 1211 | if (unlikely(!buffer_uptodate(journal->j_header_bh))) { |
1136 | #ifdef CONFIG_REISERFS_CHECK | 1212 | #ifdef CONFIG_REISERFS_CHECK |
1137 | reiserfs_warning (p_s_sb, "journal-699: buffer write failed") ; | 1213 | reiserfs_warning(p_s_sb, |
1214 | "journal-699: buffer write failed"); | ||
1138 | #endif | 1215 | #endif |
1139 | return -EIO; | 1216 | return -EIO; |
1140 | } | 1217 | } |
1141 | } | 1218 | } |
1142 | journal->j_last_flush_trans_id = trans_id ; | 1219 | journal->j_last_flush_trans_id = trans_id; |
1143 | journal->j_first_unflushed_offset = offset ; | 1220 | journal->j_first_unflushed_offset = offset; |
1144 | jh = (struct reiserfs_journal_header *)(journal->j_header_bh->b_data) ; | 1221 | jh = (struct reiserfs_journal_header *)(journal->j_header_bh-> |
1145 | jh->j_last_flush_trans_id = cpu_to_le32(trans_id) ; | 1222 | b_data); |
1146 | jh->j_first_unflushed_offset = cpu_to_le32(offset) ; | 1223 | jh->j_last_flush_trans_id = cpu_to_le32(trans_id); |
1147 | jh->j_mount_id = cpu_to_le32(journal->j_mount_id) ; | 1224 | jh->j_first_unflushed_offset = cpu_to_le32(offset); |
1148 | 1225 | jh->j_mount_id = cpu_to_le32(journal->j_mount_id); | |
1149 | if (reiserfs_barrier_flush(p_s_sb)) { | 1226 | |
1150 | int ret; | 1227 | if (reiserfs_barrier_flush(p_s_sb)) { |
1151 | lock_buffer(journal->j_header_bh); | 1228 | int ret; |
1152 | ret = submit_barrier_buffer(journal->j_header_bh); | 1229 | lock_buffer(journal->j_header_bh); |
1153 | if (ret == -EOPNOTSUPP) { | 1230 | ret = submit_barrier_buffer(journal->j_header_bh); |
1154 | set_buffer_uptodate(journal->j_header_bh); | 1231 | if (ret == -EOPNOTSUPP) { |
1155 | disable_barrier(p_s_sb); | 1232 | set_buffer_uptodate(journal->j_header_bh); |
1156 | goto sync; | 1233 | disable_barrier(p_s_sb); |
1157 | } | 1234 | goto sync; |
1158 | wait_on_buffer(journal->j_header_bh); | 1235 | } |
1159 | check_barrier_completion(p_s_sb, journal->j_header_bh); | 1236 | wait_on_buffer(journal->j_header_bh); |
1160 | } else { | 1237 | check_barrier_completion(p_s_sb, journal->j_header_bh); |
1161 | sync: | 1238 | } else { |
1162 | set_buffer_dirty(journal->j_header_bh) ; | 1239 | sync: |
1163 | sync_dirty_buffer(journal->j_header_bh) ; | 1240 | set_buffer_dirty(journal->j_header_bh); |
1164 | } | 1241 | sync_dirty_buffer(journal->j_header_bh); |
1165 | if (!buffer_uptodate(journal->j_header_bh)) { | 1242 | } |
1166 | reiserfs_warning (p_s_sb, "journal-837: IO error during journal replay"); | 1243 | if (!buffer_uptodate(journal->j_header_bh)) { |
1167 | return -EIO ; | 1244 | reiserfs_warning(p_s_sb, |
1168 | } | 1245 | "journal-837: IO error during journal replay"); |
1169 | } | 1246 | return -EIO; |
1170 | return 0 ; | 1247 | } |
1171 | } | 1248 | } |
1172 | 1249 | return 0; | |
1173 | static int update_journal_header_block(struct super_block *p_s_sb, | ||
1174 | unsigned long offset, | ||
1175 | unsigned long trans_id) { | ||
1176 | return _update_journal_header_block(p_s_sb, offset, trans_id); | ||
1177 | } | 1250 | } |
1251 | |||
1252 | static int update_journal_header_block(struct super_block *p_s_sb, | ||
1253 | unsigned long offset, | ||
1254 | unsigned long trans_id) | ||
1255 | { | ||
1256 | return _update_journal_header_block(p_s_sb, offset, trans_id); | ||
1257 | } | ||
1258 | |||
1178 | /* | 1259 | /* |
1179 | ** flush any and all journal lists older than you are | 1260 | ** flush any and all journal lists older than you are |
1180 | ** can only be called from flush_journal_list | 1261 | ** can only be called from flush_journal_list |
1181 | */ | 1262 | */ |
1182 | static int flush_older_journal_lists(struct super_block *p_s_sb, | 1263 | static int flush_older_journal_lists(struct super_block *p_s_sb, |
1183 | struct reiserfs_journal_list *jl) | 1264 | struct reiserfs_journal_list *jl) |
1184 | { | 1265 | { |
1185 | struct list_head *entry; | 1266 | struct list_head *entry; |
1186 | struct reiserfs_journal_list *other_jl ; | 1267 | struct reiserfs_journal_list *other_jl; |
1187 | struct reiserfs_journal *journal = SB_JOURNAL (p_s_sb); | 1268 | struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb); |
1188 | unsigned long trans_id = jl->j_trans_id; | 1269 | unsigned long trans_id = jl->j_trans_id; |
1189 | 1270 | ||
1190 | /* we know we are the only ones flushing things, no extra race | 1271 | /* we know we are the only ones flushing things, no extra race |
1191 | * protection is required. | 1272 | * protection is required. |
1192 | */ | 1273 | */ |
1193 | restart: | 1274 | restart: |
1194 | entry = journal->j_journal_list.next; | 1275 | entry = journal->j_journal_list.next; |
1195 | /* Did we wrap? */ | 1276 | /* Did we wrap? */ |
1196 | if (entry == &journal->j_journal_list) | 1277 | if (entry == &journal->j_journal_list) |
1197 | return 0; | 1278 | return 0; |
1198 | other_jl = JOURNAL_LIST_ENTRY(entry); | 1279 | other_jl = JOURNAL_LIST_ENTRY(entry); |
1199 | if (other_jl->j_trans_id < trans_id) { | 1280 | if (other_jl->j_trans_id < trans_id) { |
1200 | BUG_ON (other_jl->j_refcount <= 0); | 1281 | BUG_ON(other_jl->j_refcount <= 0); |
1201 | /* do not flush all */ | 1282 | /* do not flush all */ |
1202 | flush_journal_list(p_s_sb, other_jl, 0) ; | 1283 | flush_journal_list(p_s_sb, other_jl, 0); |
1203 | 1284 | ||
1204 | /* other_jl is now deleted from the list */ | 1285 | /* other_jl is now deleted from the list */ |
1205 | goto restart; | 1286 | goto restart; |
1206 | } | 1287 | } |
1207 | return 0 ; | 1288 | return 0; |
1208 | } | 1289 | } |
1209 | 1290 | ||
1210 | static void del_from_work_list(struct super_block *s, | 1291 | static void del_from_work_list(struct super_block *s, |
1211 | struct reiserfs_journal_list *jl) { | 1292 | struct reiserfs_journal_list *jl) |
1212 | struct reiserfs_journal *journal = SB_JOURNAL (s); | 1293 | { |
1213 | if (!list_empty(&jl->j_working_list)) { | 1294 | struct reiserfs_journal *journal = SB_JOURNAL(s); |
1214 | list_del_init(&jl->j_working_list); | 1295 | if (!list_empty(&jl->j_working_list)) { |
1215 | journal->j_num_work_lists--; | 1296 | list_del_init(&jl->j_working_list); |
1216 | } | 1297 | journal->j_num_work_lists--; |
1298 | } | ||
1217 | } | 1299 | } |
1218 | 1300 | ||
1219 | /* flush a journal list, both commit and real blocks | 1301 | /* flush a journal list, both commit and real blocks |
@@ -1225,386 +1307,407 @@ static void del_from_work_list(struct super_block *s, | |||
1225 | ** and the journal is locked. That means it can only be called from | 1307 | ** and the journal is locked. That means it can only be called from |
1226 | ** do_journal_end, or by journal_release | 1308 | ** do_journal_end, or by journal_release |
1227 | */ | 1309 | */ |
1228 | static int flush_journal_list(struct super_block *s, | 1310 | static int flush_journal_list(struct super_block *s, |
1229 | struct reiserfs_journal_list *jl, int flushall) { | 1311 | struct reiserfs_journal_list *jl, int flushall) |
1230 | struct reiserfs_journal_list *pjl ; | 1312 | { |
1231 | struct reiserfs_journal_cnode *cn, *last ; | 1313 | struct reiserfs_journal_list *pjl; |
1232 | int count ; | 1314 | struct reiserfs_journal_cnode *cn, *last; |
1233 | int was_jwait = 0 ; | 1315 | int count; |
1234 | int was_dirty = 0 ; | 1316 | int was_jwait = 0; |
1235 | struct buffer_head *saved_bh ; | 1317 | int was_dirty = 0; |
1236 | unsigned long j_len_saved = jl->j_len ; | 1318 | struct buffer_head *saved_bh; |
1237 | struct reiserfs_journal *journal = SB_JOURNAL (s); | 1319 | unsigned long j_len_saved = jl->j_len; |
1238 | int err = 0; | 1320 | struct reiserfs_journal *journal = SB_JOURNAL(s); |
1239 | 1321 | int err = 0; | |
1240 | BUG_ON (j_len_saved <= 0); | 1322 | |
1241 | 1323 | BUG_ON(j_len_saved <= 0); | |
1242 | if (atomic_read(&journal->j_wcount) != 0) { | 1324 | |
1243 | reiserfs_warning(s, "clm-2048: flush_journal_list called with wcount %d", | 1325 | if (atomic_read(&journal->j_wcount) != 0) { |
1244 | atomic_read(&journal->j_wcount)) ; | 1326 | reiserfs_warning(s, |
1245 | } | 1327 | "clm-2048: flush_journal_list called with wcount %d", |
1246 | BUG_ON (jl->j_trans_id == 0); | 1328 | atomic_read(&journal->j_wcount)); |
1247 | 1329 | } | |
1248 | /* if flushall == 0, the lock is already held */ | 1330 | BUG_ON(jl->j_trans_id == 0); |
1249 | if (flushall) { | 1331 | |
1250 | down(&journal->j_flush_sem); | 1332 | /* if flushall == 0, the lock is already held */ |
1251 | } else if (!down_trylock(&journal->j_flush_sem)) { | 1333 | if (flushall) { |
1252 | BUG(); | 1334 | down(&journal->j_flush_sem); |
1253 | } | 1335 | } else if (!down_trylock(&journal->j_flush_sem)) { |
1254 | 1336 | BUG(); | |
1255 | count = 0 ; | 1337 | } |
1256 | if (j_len_saved > journal->j_trans_max) { | 1338 | |
1257 | reiserfs_panic(s, "journal-715: flush_journal_list, length is %lu, trans id %lu\n", j_len_saved, jl->j_trans_id); | 1339 | count = 0; |
1258 | return 0 ; | 1340 | if (j_len_saved > journal->j_trans_max) { |
1259 | } | 1341 | reiserfs_panic(s, |
1260 | 1342 | "journal-715: flush_journal_list, length is %lu, trans id %lu\n", | |
1261 | get_fs_excl(); | 1343 | j_len_saved, jl->j_trans_id); |
1262 | 1344 | return 0; | |
1263 | /* if all the work is already done, get out of here */ | 1345 | } |
1264 | if (atomic_read(&(jl->j_nonzerolen)) <= 0 && | 1346 | |
1265 | atomic_read(&(jl->j_commit_left)) <= 0) { | 1347 | get_fs_excl(); |
1266 | goto flush_older_and_return ; | 1348 | |
1267 | } | 1349 | /* if all the work is already done, get out of here */ |
1268 | 1350 | if (atomic_read(&(jl->j_nonzerolen)) <= 0 && | |
1269 | /* start by putting the commit list on disk. This will also flush | 1351 | atomic_read(&(jl->j_commit_left)) <= 0) { |
1270 | ** the commit lists of any olders transactions | 1352 | goto flush_older_and_return; |
1271 | */ | 1353 | } |
1272 | flush_commit_list(s, jl, 1) ; | 1354 | |
1273 | 1355 | /* start by putting the commit list on disk. This will also flush | |
1274 | if (!(jl->j_state & LIST_DIRTY) && !reiserfs_is_journal_aborted (journal)) | 1356 | ** the commit lists of any olders transactions |
1275 | BUG(); | 1357 | */ |
1276 | 1358 | flush_commit_list(s, jl, 1); | |
1277 | /* are we done now? */ | 1359 | |
1278 | if (atomic_read(&(jl->j_nonzerolen)) <= 0 && | 1360 | if (!(jl->j_state & LIST_DIRTY) |
1279 | atomic_read(&(jl->j_commit_left)) <= 0) { | 1361 | && !reiserfs_is_journal_aborted(journal)) |
1280 | goto flush_older_and_return ; | 1362 | BUG(); |
1281 | } | 1363 | |
1282 | 1364 | /* are we done now? */ | |
1283 | /* loop through each cnode, see if we need to write it, | 1365 | if (atomic_read(&(jl->j_nonzerolen)) <= 0 && |
1284 | ** or wait on a more recent transaction, or just ignore it | 1366 | atomic_read(&(jl->j_commit_left)) <= 0) { |
1285 | */ | 1367 | goto flush_older_and_return; |
1286 | if (atomic_read(&(journal->j_wcount)) != 0) { | 1368 | } |
1287 | reiserfs_panic(s, "journal-844: panic journal list is flushing, wcount is not 0\n") ; | 1369 | |
1288 | } | 1370 | /* loop through each cnode, see if we need to write it, |
1289 | cn = jl->j_realblock ; | 1371 | ** or wait on a more recent transaction, or just ignore it |
1290 | while(cn) { | 1372 | */ |
1291 | was_jwait = 0 ; | 1373 | if (atomic_read(&(journal->j_wcount)) != 0) { |
1292 | was_dirty = 0 ; | 1374 | reiserfs_panic(s, |
1293 | saved_bh = NULL ; | 1375 | "journal-844: panic journal list is flushing, wcount is not 0\n"); |
1294 | /* blocknr of 0 is no longer in the hash, ignore it */ | 1376 | } |
1295 | if (cn->blocknr == 0) { | 1377 | cn = jl->j_realblock; |
1296 | goto free_cnode ; | 1378 | while (cn) { |
1297 | } | 1379 | was_jwait = 0; |
1298 | 1380 | was_dirty = 0; | |
1299 | /* This transaction failed commit. Don't write out to the disk */ | 1381 | saved_bh = NULL; |
1300 | if (!(jl->j_state & LIST_DIRTY)) | 1382 | /* blocknr of 0 is no longer in the hash, ignore it */ |
1301 | goto free_cnode; | 1383 | if (cn->blocknr == 0) { |
1302 | 1384 | goto free_cnode; | |
1303 | pjl = find_newer_jl_for_cn(cn) ; | 1385 | } |
1304 | /* the order is important here. We check pjl to make sure we | 1386 | |
1305 | ** don't clear BH_JDirty_wait if we aren't the one writing this | 1387 | /* This transaction failed commit. Don't write out to the disk */ |
1306 | ** block to disk | 1388 | if (!(jl->j_state & LIST_DIRTY)) |
1307 | */ | 1389 | goto free_cnode; |
1308 | if (!pjl && cn->bh) { | 1390 | |
1309 | saved_bh = cn->bh ; | 1391 | pjl = find_newer_jl_for_cn(cn); |
1310 | 1392 | /* the order is important here. We check pjl to make sure we | |
1311 | /* we do this to make sure nobody releases the buffer while | 1393 | ** don't clear BH_JDirty_wait if we aren't the one writing this |
1312 | ** we are working with it | 1394 | ** block to disk |
1313 | */ | 1395 | */ |
1314 | get_bh(saved_bh) ; | 1396 | if (!pjl && cn->bh) { |
1315 | 1397 | saved_bh = cn->bh; | |
1316 | if (buffer_journal_dirty(saved_bh)) { | 1398 | |
1317 | BUG_ON (!can_dirty (cn)); | 1399 | /* we do this to make sure nobody releases the buffer while |
1318 | was_jwait = 1 ; | 1400 | ** we are working with it |
1319 | was_dirty = 1 ; | 1401 | */ |
1320 | } else if (can_dirty(cn)) { | 1402 | get_bh(saved_bh); |
1321 | /* everything with !pjl && jwait should be writable */ | 1403 | |
1322 | BUG(); | 1404 | if (buffer_journal_dirty(saved_bh)) { |
1323 | } | 1405 | BUG_ON(!can_dirty(cn)); |
1324 | } | 1406 | was_jwait = 1; |
1325 | 1407 | was_dirty = 1; | |
1326 | /* if someone has this block in a newer transaction, just make | 1408 | } else if (can_dirty(cn)) { |
1327 | ** sure they are commited, and don't try writing it to disk | 1409 | /* everything with !pjl && jwait should be writable */ |
1328 | */ | 1410 | BUG(); |
1329 | if (pjl) { | 1411 | } |
1330 | if (atomic_read(&pjl->j_commit_left)) | 1412 | } |
1331 | flush_commit_list(s, pjl, 1) ; | 1413 | |
1332 | goto free_cnode ; | 1414 | /* if someone has this block in a newer transaction, just make |
1333 | } | 1415 | ** sure they are commited, and don't try writing it to disk |
1334 | 1416 | */ | |
1335 | /* bh == NULL when the block got to disk on its own, OR, | 1417 | if (pjl) { |
1336 | ** the block got freed in a future transaction | 1418 | if (atomic_read(&pjl->j_commit_left)) |
1337 | */ | 1419 | flush_commit_list(s, pjl, 1); |
1338 | if (saved_bh == NULL) { | 1420 | goto free_cnode; |
1339 | goto free_cnode ; | 1421 | } |
1340 | } | 1422 | |
1341 | 1423 | /* bh == NULL when the block got to disk on its own, OR, | |
1342 | /* this should never happen. kupdate_one_transaction has this list | 1424 | ** the block got freed in a future transaction |
1343 | ** locked while it works, so we should never see a buffer here that | 1425 | */ |
1344 | ** is not marked JDirty_wait | 1426 | if (saved_bh == NULL) { |
1345 | */ | 1427 | goto free_cnode; |
1346 | if ((!was_jwait) && !buffer_locked(saved_bh)) { | 1428 | } |
1347 | reiserfs_warning (s, "journal-813: BAD! buffer %llu %cdirty %cjwait, " | 1429 | |
1348 | "not in a newer tranasction", | 1430 | /* this should never happen. kupdate_one_transaction has this list |
1349 | (unsigned long long)saved_bh->b_blocknr, | 1431 | ** locked while it works, so we should never see a buffer here that |
1350 | was_dirty ? ' ' : '!', was_jwait ? ' ' : '!') ; | 1432 | ** is not marked JDirty_wait |
1351 | } | 1433 | */ |
1352 | if (was_dirty) { | 1434 | if ((!was_jwait) && !buffer_locked(saved_bh)) { |
1353 | /* we inc again because saved_bh gets decremented at free_cnode */ | 1435 | reiserfs_warning(s, |
1354 | get_bh(saved_bh) ; | 1436 | "journal-813: BAD! buffer %llu %cdirty %cjwait, " |
1355 | set_bit(BLOCK_NEEDS_FLUSH, &cn->state) ; | 1437 | "not in a newer tranasction", |
1356 | lock_buffer(saved_bh); | 1438 | (unsigned long long)saved_bh-> |
1357 | BUG_ON (cn->blocknr != saved_bh->b_blocknr); | 1439 | b_blocknr, was_dirty ? ' ' : '!', |
1358 | if (buffer_dirty(saved_bh)) | 1440 | was_jwait ? ' ' : '!'); |
1359 | submit_logged_buffer(saved_bh) ; | 1441 | } |
1360 | else | 1442 | if (was_dirty) { |
1361 | unlock_buffer(saved_bh); | 1443 | /* we inc again because saved_bh gets decremented at free_cnode */ |
1362 | count++ ; | 1444 | get_bh(saved_bh); |
1363 | } else { | 1445 | set_bit(BLOCK_NEEDS_FLUSH, &cn->state); |
1364 | reiserfs_warning (s, "clm-2082: Unable to flush buffer %llu in %s", | 1446 | lock_buffer(saved_bh); |
1365 | (unsigned long long)saved_bh->b_blocknr, __FUNCTION__); | 1447 | BUG_ON(cn->blocknr != saved_bh->b_blocknr); |
1366 | } | 1448 | if (buffer_dirty(saved_bh)) |
1367 | free_cnode: | 1449 | submit_logged_buffer(saved_bh); |
1368 | last = cn ; | 1450 | else |
1369 | cn = cn->next ; | 1451 | unlock_buffer(saved_bh); |
1370 | if (saved_bh) { | 1452 | count++; |
1371 | /* we incremented this to keep others from taking the buffer head away */ | 1453 | } else { |
1372 | put_bh(saved_bh) ; | 1454 | reiserfs_warning(s, |
1373 | if (atomic_read(&(saved_bh->b_count)) < 0) { | 1455 | "clm-2082: Unable to flush buffer %llu in %s", |
1374 | reiserfs_warning (s, "journal-945: saved_bh->b_count < 0"); | 1456 | (unsigned long long)saved_bh-> |
1375 | } | 1457 | b_blocknr, __FUNCTION__); |
1376 | } | 1458 | } |
1377 | } | 1459 | free_cnode: |
1378 | if (count > 0) { | 1460 | last = cn; |
1379 | cn = jl->j_realblock ; | 1461 | cn = cn->next; |
1380 | while(cn) { | 1462 | if (saved_bh) { |
1381 | if (test_bit(BLOCK_NEEDS_FLUSH, &cn->state)) { | 1463 | /* we incremented this to keep others from taking the buffer head away */ |
1382 | if (!cn->bh) { | 1464 | put_bh(saved_bh); |
1383 | reiserfs_panic(s, "journal-1011: cn->bh is NULL\n") ; | 1465 | if (atomic_read(&(saved_bh->b_count)) < 0) { |
1384 | } | 1466 | reiserfs_warning(s, |
1385 | wait_on_buffer(cn->bh) ; | 1467 | "journal-945: saved_bh->b_count < 0"); |
1386 | if (!cn->bh) { | 1468 | } |
1387 | reiserfs_panic(s, "journal-1012: cn->bh is NULL\n") ; | 1469 | } |
1388 | } | 1470 | } |
1389 | if (unlikely (!buffer_uptodate(cn->bh))) { | 1471 | if (count > 0) { |
1472 | cn = jl->j_realblock; | ||
1473 | while (cn) { | ||
1474 | if (test_bit(BLOCK_NEEDS_FLUSH, &cn->state)) { | ||
1475 | if (!cn->bh) { | ||
1476 | reiserfs_panic(s, | ||
1477 | "journal-1011: cn->bh is NULL\n"); | ||
1478 | } | ||
1479 | wait_on_buffer(cn->bh); | ||
1480 | if (!cn->bh) { | ||
1481 | reiserfs_panic(s, | ||
1482 | "journal-1012: cn->bh is NULL\n"); | ||
1483 | } | ||
1484 | if (unlikely(!buffer_uptodate(cn->bh))) { | ||
1390 | #ifdef CONFIG_REISERFS_CHECK | 1485 | #ifdef CONFIG_REISERFS_CHECK |
1391 | reiserfs_warning(s, "journal-949: buffer write failed\n") ; | 1486 | reiserfs_warning(s, |
1487 | "journal-949: buffer write failed\n"); | ||
1392 | #endif | 1488 | #endif |
1393 | err = -EIO; | 1489 | err = -EIO; |
1394 | } | 1490 | } |
1395 | /* note, we must clear the JDirty_wait bit after the up to date | 1491 | /* note, we must clear the JDirty_wait bit after the up to date |
1396 | ** check, otherwise we race against our flushpage routine | 1492 | ** check, otherwise we race against our flushpage routine |
1397 | */ | 1493 | */ |
1398 | BUG_ON (!test_clear_buffer_journal_dirty (cn->bh)); | 1494 | BUG_ON(!test_clear_buffer_journal_dirty |
1399 | 1495 | (cn->bh)); | |
1400 | /* undo the inc from journal_mark_dirty */ | 1496 | |
1401 | put_bh(cn->bh) ; | 1497 | /* undo the inc from journal_mark_dirty */ |
1402 | brelse(cn->bh) ; | 1498 | put_bh(cn->bh); |
1403 | } | 1499 | brelse(cn->bh); |
1404 | cn = cn->next ; | 1500 | } |
1405 | } | 1501 | cn = cn->next; |
1406 | } | 1502 | } |
1407 | 1503 | } | |
1408 | if (err) | 1504 | |
1409 | reiserfs_abort (s, -EIO, "Write error while pushing transaction to disk in %s", __FUNCTION__); | 1505 | if (err) |
1410 | flush_older_and_return: | 1506 | reiserfs_abort(s, -EIO, |
1411 | 1507 | "Write error while pushing transaction to disk in %s", | |
1412 | 1508 | __FUNCTION__); | |
1413 | /* before we can update the journal header block, we _must_ flush all | 1509 | flush_older_and_return: |
1414 | ** real blocks from all older transactions to disk. This is because | 1510 | |
1415 | ** once the header block is updated, this transaction will not be | 1511 | /* before we can update the journal header block, we _must_ flush all |
1416 | ** replayed after a crash | 1512 | ** real blocks from all older transactions to disk. This is because |
1417 | */ | 1513 | ** once the header block is updated, this transaction will not be |
1418 | if (flushall) { | 1514 | ** replayed after a crash |
1419 | flush_older_journal_lists(s, jl); | 1515 | */ |
1420 | } | 1516 | if (flushall) { |
1421 | 1517 | flush_older_journal_lists(s, jl); | |
1422 | err = journal->j_errno; | 1518 | } |
1423 | /* before we can remove everything from the hash tables for this | 1519 | |
1424 | ** transaction, we must make sure it can never be replayed | 1520 | err = journal->j_errno; |
1425 | ** | 1521 | /* before we can remove everything from the hash tables for this |
1426 | ** since we are only called from do_journal_end, we know for sure there | 1522 | ** transaction, we must make sure it can never be replayed |
1427 | ** are no allocations going on while we are flushing journal lists. So, | 1523 | ** |
1428 | ** we only need to update the journal header block for the last list | 1524 | ** since we are only called from do_journal_end, we know for sure there |
1429 | ** being flushed | 1525 | ** are no allocations going on while we are flushing journal lists. So, |
1430 | */ | 1526 | ** we only need to update the journal header block for the last list |
1431 | if (!err && flushall) { | 1527 | ** being flushed |
1432 | err = update_journal_header_block(s, (jl->j_start + jl->j_len + 2) % SB_ONDISK_JOURNAL_SIZE(s), jl->j_trans_id) ; | 1528 | */ |
1433 | if (err) | 1529 | if (!err && flushall) { |
1434 | reiserfs_abort (s, -EIO, "Write error while updating journal header in %s", __FUNCTION__); | 1530 | err = |
1435 | } | 1531 | update_journal_header_block(s, |
1436 | remove_all_from_journal_list(s, jl, 0) ; | 1532 | (jl->j_start + jl->j_len + |
1437 | list_del_init(&jl->j_list); | 1533 | 2) % SB_ONDISK_JOURNAL_SIZE(s), |
1438 | journal->j_num_lists--; | 1534 | jl->j_trans_id); |
1439 | del_from_work_list(s, jl); | 1535 | if (err) |
1440 | 1536 | reiserfs_abort(s, -EIO, | |
1441 | if (journal->j_last_flush_id != 0 && | 1537 | "Write error while updating journal header in %s", |
1442 | (jl->j_trans_id - journal->j_last_flush_id) != 1) { | 1538 | __FUNCTION__); |
1443 | reiserfs_warning(s, "clm-2201: last flush %lu, current %lu", | 1539 | } |
1444 | journal->j_last_flush_id, | 1540 | remove_all_from_journal_list(s, jl, 0); |
1445 | jl->j_trans_id); | 1541 | list_del_init(&jl->j_list); |
1446 | } | 1542 | journal->j_num_lists--; |
1447 | journal->j_last_flush_id = jl->j_trans_id; | 1543 | del_from_work_list(s, jl); |
1448 | 1544 | ||
1449 | /* not strictly required since we are freeing the list, but it should | 1545 | if (journal->j_last_flush_id != 0 && |
1450 | * help find code using dead lists later on | 1546 | (jl->j_trans_id - journal->j_last_flush_id) != 1) { |
1451 | */ | 1547 | reiserfs_warning(s, "clm-2201: last flush %lu, current %lu", |
1452 | jl->j_len = 0 ; | 1548 | journal->j_last_flush_id, jl->j_trans_id); |
1453 | atomic_set(&(jl->j_nonzerolen), 0) ; | 1549 | } |
1454 | jl->j_start = 0 ; | 1550 | journal->j_last_flush_id = jl->j_trans_id; |
1455 | jl->j_realblock = NULL ; | 1551 | |
1456 | jl->j_commit_bh = NULL ; | 1552 | /* not strictly required since we are freeing the list, but it should |
1457 | jl->j_trans_id = 0 ; | 1553 | * help find code using dead lists later on |
1458 | jl->j_state = 0; | 1554 | */ |
1459 | put_journal_list(s, jl); | 1555 | jl->j_len = 0; |
1460 | if (flushall) | 1556 | atomic_set(&(jl->j_nonzerolen), 0); |
1461 | up(&journal->j_flush_sem); | 1557 | jl->j_start = 0; |
1462 | put_fs_excl(); | 1558 | jl->j_realblock = NULL; |
1463 | return err ; | 1559 | jl->j_commit_bh = NULL; |
1464 | } | 1560 | jl->j_trans_id = 0; |
1561 | jl->j_state = 0; | ||
1562 | put_journal_list(s, jl); | ||
1563 | if (flushall) | ||
1564 | up(&journal->j_flush_sem); | ||
1565 | put_fs_excl(); | ||
1566 | return err; | ||
1567 | } | ||
1465 | 1568 | ||
1466 | static int write_one_transaction(struct super_block *s, | 1569 | static int write_one_transaction(struct super_block *s, |
1467 | struct reiserfs_journal_list *jl, | 1570 | struct reiserfs_journal_list *jl, |
1468 | struct buffer_chunk *chunk) | 1571 | struct buffer_chunk *chunk) |
1469 | { | 1572 | { |
1470 | struct reiserfs_journal_cnode *cn; | 1573 | struct reiserfs_journal_cnode *cn; |
1471 | int ret = 0 ; | 1574 | int ret = 0; |
1472 | 1575 | ||
1473 | jl->j_state |= LIST_TOUCHED; | 1576 | jl->j_state |= LIST_TOUCHED; |
1474 | del_from_work_list(s, jl); | 1577 | del_from_work_list(s, jl); |
1475 | if (jl->j_len == 0 || atomic_read(&jl->j_nonzerolen) == 0) { | 1578 | if (jl->j_len == 0 || atomic_read(&jl->j_nonzerolen) == 0) { |
1476 | return 0; | 1579 | return 0; |
1477 | } | 1580 | } |
1478 | 1581 | ||
1479 | cn = jl->j_realblock ; | 1582 | cn = jl->j_realblock; |
1480 | while(cn) { | 1583 | while (cn) { |
1481 | /* if the blocknr == 0, this has been cleared from the hash, | 1584 | /* if the blocknr == 0, this has been cleared from the hash, |
1482 | ** skip it | 1585 | ** skip it |
1483 | */ | 1586 | */ |
1484 | if (cn->blocknr == 0) { | 1587 | if (cn->blocknr == 0) { |
1485 | goto next ; | 1588 | goto next; |
1486 | } | 1589 | } |
1487 | if (cn->bh && can_dirty(cn) && buffer_dirty(cn->bh)) { | 1590 | if (cn->bh && can_dirty(cn) && buffer_dirty(cn->bh)) { |
1488 | struct buffer_head *tmp_bh; | 1591 | struct buffer_head *tmp_bh; |
1489 | /* we can race against journal_mark_freed when we try | 1592 | /* we can race against journal_mark_freed when we try |
1490 | * to lock_buffer(cn->bh), so we have to inc the buffer | 1593 | * to lock_buffer(cn->bh), so we have to inc the buffer |
1491 | * count, and recheck things after locking | 1594 | * count, and recheck things after locking |
1492 | */ | 1595 | */ |
1493 | tmp_bh = cn->bh; | 1596 | tmp_bh = cn->bh; |
1494 | get_bh(tmp_bh); | 1597 | get_bh(tmp_bh); |
1495 | lock_buffer(tmp_bh); | 1598 | lock_buffer(tmp_bh); |
1496 | if (cn->bh && can_dirty(cn) && buffer_dirty(tmp_bh)) { | 1599 | if (cn->bh && can_dirty(cn) && buffer_dirty(tmp_bh)) { |
1497 | if (!buffer_journal_dirty(tmp_bh) || | 1600 | if (!buffer_journal_dirty(tmp_bh) || |
1498 | buffer_journal_prepared(tmp_bh)) | 1601 | buffer_journal_prepared(tmp_bh)) |
1499 | BUG(); | 1602 | BUG(); |
1500 | add_to_chunk(chunk, tmp_bh, NULL, write_chunk); | 1603 | add_to_chunk(chunk, tmp_bh, NULL, write_chunk); |
1501 | ret++; | 1604 | ret++; |
1502 | } else { | 1605 | } else { |
1503 | /* note, cn->bh might be null now */ | 1606 | /* note, cn->bh might be null now */ |
1504 | unlock_buffer(tmp_bh); | 1607 | unlock_buffer(tmp_bh); |
1505 | } | 1608 | } |
1506 | put_bh(tmp_bh); | 1609 | put_bh(tmp_bh); |
1507 | } | 1610 | } |
1508 | next: | 1611 | next: |
1509 | cn = cn->next ; | 1612 | cn = cn->next; |
1510 | cond_resched(); | 1613 | cond_resched(); |
1511 | } | 1614 | } |
1512 | return ret ; | 1615 | return ret; |
1513 | } | 1616 | } |
1514 | 1617 | ||
1515 | /* used by flush_commit_list */ | 1618 | /* used by flush_commit_list */ |
1516 | static int dirty_one_transaction(struct super_block *s, | 1619 | static int dirty_one_transaction(struct super_block *s, |
1517 | struct reiserfs_journal_list *jl) | 1620 | struct reiserfs_journal_list *jl) |
1518 | { | 1621 | { |
1519 | struct reiserfs_journal_cnode *cn; | 1622 | struct reiserfs_journal_cnode *cn; |
1520 | struct reiserfs_journal_list *pjl; | 1623 | struct reiserfs_journal_list *pjl; |
1521 | int ret = 0 ; | 1624 | int ret = 0; |
1522 | 1625 | ||
1523 | jl->j_state |= LIST_DIRTY; | 1626 | jl->j_state |= LIST_DIRTY; |
1524 | cn = jl->j_realblock ; | 1627 | cn = jl->j_realblock; |
1525 | while(cn) { | 1628 | while (cn) { |
1526 | /* look for a more recent transaction that logged this | 1629 | /* look for a more recent transaction that logged this |
1527 | ** buffer. Only the most recent transaction with a buffer in | 1630 | ** buffer. Only the most recent transaction with a buffer in |
1528 | ** it is allowed to send that buffer to disk | 1631 | ** it is allowed to send that buffer to disk |
1529 | */ | 1632 | */ |
1530 | pjl = find_newer_jl_for_cn(cn) ; | 1633 | pjl = find_newer_jl_for_cn(cn); |
1531 | if (!pjl && cn->blocknr && cn->bh && buffer_journal_dirty(cn->bh)) | 1634 | if (!pjl && cn->blocknr && cn->bh |
1532 | { | 1635 | && buffer_journal_dirty(cn->bh)) { |
1533 | BUG_ON (!can_dirty(cn)); | 1636 | BUG_ON(!can_dirty(cn)); |
1534 | /* if the buffer is prepared, it will either be logged | 1637 | /* if the buffer is prepared, it will either be logged |
1535 | * or restored. If restored, we need to make sure | 1638 | * or restored. If restored, we need to make sure |
1536 | * it actually gets marked dirty | 1639 | * it actually gets marked dirty |
1537 | */ | 1640 | */ |
1538 | clear_buffer_journal_new (cn->bh); | 1641 | clear_buffer_journal_new(cn->bh); |
1539 | if (buffer_journal_prepared (cn->bh)) { | 1642 | if (buffer_journal_prepared(cn->bh)) { |
1540 | set_buffer_journal_restore_dirty (cn->bh); | 1643 | set_buffer_journal_restore_dirty(cn->bh); |
1541 | } else { | 1644 | } else { |
1542 | set_buffer_journal_test (cn->bh); | 1645 | set_buffer_journal_test(cn->bh); |
1543 | mark_buffer_dirty(cn->bh); | 1646 | mark_buffer_dirty(cn->bh); |
1544 | } | 1647 | } |
1545 | } | 1648 | } |
1546 | cn = cn->next ; | 1649 | cn = cn->next; |
1547 | } | 1650 | } |
1548 | return ret ; | 1651 | return ret; |
1549 | } | 1652 | } |
1550 | 1653 | ||
1551 | static int kupdate_transactions(struct super_block *s, | 1654 | static int kupdate_transactions(struct super_block *s, |
1552 | struct reiserfs_journal_list *jl, | 1655 | struct reiserfs_journal_list *jl, |
1553 | struct reiserfs_journal_list **next_jl, | 1656 | struct reiserfs_journal_list **next_jl, |
1554 | unsigned long *next_trans_id, | 1657 | unsigned long *next_trans_id, |
1555 | int num_blocks, | 1658 | int num_blocks, int num_trans) |
1556 | int num_trans) { | 1659 | { |
1557 | int ret = 0; | 1660 | int ret = 0; |
1558 | int written = 0 ; | 1661 | int written = 0; |
1559 | int transactions_flushed = 0; | 1662 | int transactions_flushed = 0; |
1560 | unsigned long orig_trans_id = jl->j_trans_id; | 1663 | unsigned long orig_trans_id = jl->j_trans_id; |
1561 | struct buffer_chunk chunk; | 1664 | struct buffer_chunk chunk; |
1562 | struct list_head *entry; | 1665 | struct list_head *entry; |
1563 | struct reiserfs_journal *journal = SB_JOURNAL (s); | 1666 | struct reiserfs_journal *journal = SB_JOURNAL(s); |
1564 | chunk.nr = 0; | 1667 | chunk.nr = 0; |
1565 | 1668 | ||
1566 | down(&journal->j_flush_sem); | 1669 | down(&journal->j_flush_sem); |
1567 | if (!journal_list_still_alive(s, orig_trans_id)) { | 1670 | if (!journal_list_still_alive(s, orig_trans_id)) { |
1568 | goto done; | 1671 | goto done; |
1569 | } | 1672 | } |
1570 | 1673 | ||
1571 | /* we've got j_flush_sem held, nobody is going to delete any | 1674 | /* we've got j_flush_sem held, nobody is going to delete any |
1572 | * of these lists out from underneath us | 1675 | * of these lists out from underneath us |
1573 | */ | 1676 | */ |
1574 | while((num_trans && transactions_flushed < num_trans) || | 1677 | while ((num_trans && transactions_flushed < num_trans) || |
1575 | (!num_trans && written < num_blocks)) { | 1678 | (!num_trans && written < num_blocks)) { |
1576 | 1679 | ||
1577 | if (jl->j_len == 0 || (jl->j_state & LIST_TOUCHED) || | 1680 | if (jl->j_len == 0 || (jl->j_state & LIST_TOUCHED) || |
1578 | atomic_read(&jl->j_commit_left) || !(jl->j_state & LIST_DIRTY)) | 1681 | atomic_read(&jl->j_commit_left) |
1579 | { | 1682 | || !(jl->j_state & LIST_DIRTY)) { |
1580 | del_from_work_list(s, jl); | 1683 | del_from_work_list(s, jl); |
1581 | break; | 1684 | break; |
1582 | } | 1685 | } |
1583 | ret = write_one_transaction(s, jl, &chunk); | 1686 | ret = write_one_transaction(s, jl, &chunk); |
1584 | 1687 | ||
1585 | if (ret < 0) | 1688 | if (ret < 0) |
1586 | goto done; | 1689 | goto done; |
1587 | transactions_flushed++; | 1690 | transactions_flushed++; |
1588 | written += ret; | 1691 | written += ret; |
1589 | entry = jl->j_list.next; | 1692 | entry = jl->j_list.next; |
1590 | 1693 | ||
1591 | /* did we wrap? */ | 1694 | /* did we wrap? */ |
1592 | if (entry == &journal->j_journal_list) { | 1695 | if (entry == &journal->j_journal_list) { |
1593 | break; | 1696 | break; |
1594 | } | 1697 | } |
1595 | jl = JOURNAL_LIST_ENTRY(entry); | 1698 | jl = JOURNAL_LIST_ENTRY(entry); |
1596 | 1699 | ||
1597 | /* don't bother with older transactions */ | 1700 | /* don't bother with older transactions */ |
1598 | if (jl->j_trans_id <= orig_trans_id) | 1701 | if (jl->j_trans_id <= orig_trans_id) |
1599 | break; | 1702 | break; |
1600 | } | 1703 | } |
1601 | if (chunk.nr) { | 1704 | if (chunk.nr) { |
1602 | write_chunk(&chunk); | 1705 | write_chunk(&chunk); |
1603 | } | 1706 | } |
1604 | 1707 | ||
1605 | done: | 1708 | done: |
1606 | up(&journal->j_flush_sem); | 1709 | up(&journal->j_flush_sem); |
1607 | return ret; | 1710 | return ret; |
1608 | } | 1711 | } |
1609 | 1712 | ||
1610 | /* for o_sync and fsync heavy applications, they tend to use | 1713 | /* for o_sync and fsync heavy applications, they tend to use |
@@ -1617,47 +1720,48 @@ done: | |||
1617 | ** list updates the header block | 1720 | ** list updates the header block |
1618 | */ | 1721 | */ |
1619 | static int flush_used_journal_lists(struct super_block *s, | 1722 | static int flush_used_journal_lists(struct super_block *s, |
1620 | struct reiserfs_journal_list *jl) { | 1723 | struct reiserfs_journal_list *jl) |
1621 | unsigned long len = 0; | 1724 | { |
1622 | unsigned long cur_len; | 1725 | unsigned long len = 0; |
1623 | int ret; | 1726 | unsigned long cur_len; |
1624 | int i; | 1727 | int ret; |
1625 | int limit = 256; | 1728 | int i; |
1626 | struct reiserfs_journal_list *tjl; | 1729 | int limit = 256; |
1627 | struct reiserfs_journal_list *flush_jl; | 1730 | struct reiserfs_journal_list *tjl; |
1628 | unsigned long trans_id; | 1731 | struct reiserfs_journal_list *flush_jl; |
1629 | struct reiserfs_journal *journal = SB_JOURNAL (s); | 1732 | unsigned long trans_id; |
1630 | 1733 | struct reiserfs_journal *journal = SB_JOURNAL(s); | |
1631 | flush_jl = tjl = jl; | 1734 | |
1632 | 1735 | flush_jl = tjl = jl; | |
1633 | /* in data logging mode, try harder to flush a lot of blocks */ | 1736 | |
1634 | if (reiserfs_data_log(s)) | 1737 | /* in data logging mode, try harder to flush a lot of blocks */ |
1635 | limit = 1024; | 1738 | if (reiserfs_data_log(s)) |
1636 | /* flush for 256 transactions or limit blocks, whichever comes first */ | 1739 | limit = 1024; |
1637 | for(i = 0 ; i < 256 && len < limit ; i++) { | 1740 | /* flush for 256 transactions or limit blocks, whichever comes first */ |
1638 | if (atomic_read(&tjl->j_commit_left) || | 1741 | for (i = 0; i < 256 && len < limit; i++) { |
1639 | tjl->j_trans_id < jl->j_trans_id) { | 1742 | if (atomic_read(&tjl->j_commit_left) || |
1640 | break; | 1743 | tjl->j_trans_id < jl->j_trans_id) { |
1641 | } | 1744 | break; |
1642 | cur_len = atomic_read(&tjl->j_nonzerolen); | 1745 | } |
1643 | if (cur_len > 0) { | 1746 | cur_len = atomic_read(&tjl->j_nonzerolen); |
1644 | tjl->j_state &= ~LIST_TOUCHED; | 1747 | if (cur_len > 0) { |
1645 | } | 1748 | tjl->j_state &= ~LIST_TOUCHED; |
1646 | len += cur_len; | 1749 | } |
1647 | flush_jl = tjl; | 1750 | len += cur_len; |
1648 | if (tjl->j_list.next == &journal->j_journal_list) | 1751 | flush_jl = tjl; |
1649 | break; | 1752 | if (tjl->j_list.next == &journal->j_journal_list) |
1650 | tjl = JOURNAL_LIST_ENTRY(tjl->j_list.next); | 1753 | break; |
1651 | } | 1754 | tjl = JOURNAL_LIST_ENTRY(tjl->j_list.next); |
1652 | /* try to find a group of blocks we can flush across all the | 1755 | } |
1653 | ** transactions, but only bother if we've actually spanned | 1756 | /* try to find a group of blocks we can flush across all the |
1654 | ** across multiple lists | 1757 | ** transactions, but only bother if we've actually spanned |
1655 | */ | 1758 | ** across multiple lists |
1656 | if (flush_jl != jl) { | 1759 | */ |
1657 | ret = kupdate_transactions(s, jl, &tjl, &trans_id, len, i); | 1760 | if (flush_jl != jl) { |
1658 | } | 1761 | ret = kupdate_transactions(s, jl, &tjl, &trans_id, len, i); |
1659 | flush_journal_list(s, flush_jl, 1); | 1762 | } |
1660 | return 0; | 1763 | flush_journal_list(s, flush_jl, 1); |
1764 | return 0; | ||
1661 | } | 1765 | } |
1662 | 1766 | ||
1663 | /* | 1767 | /* |
@@ -1665,207 +1769,248 @@ static int flush_used_journal_lists(struct super_block *s, | |||
1665 | ** only touchs the hnext and hprev pointers. | 1769 | ** only touchs the hnext and hprev pointers. |
1666 | */ | 1770 | */ |
1667 | void remove_journal_hash(struct super_block *sb, | 1771 | void remove_journal_hash(struct super_block *sb, |
1668 | struct reiserfs_journal_cnode **table, | 1772 | struct reiserfs_journal_cnode **table, |
1669 | struct reiserfs_journal_list *jl, | 1773 | struct reiserfs_journal_list *jl, |
1670 | unsigned long block, int remove_freed) | 1774 | unsigned long block, int remove_freed) |
1671 | { | 1775 | { |
1672 | struct reiserfs_journal_cnode *cur ; | 1776 | struct reiserfs_journal_cnode *cur; |
1673 | struct reiserfs_journal_cnode **head ; | 1777 | struct reiserfs_journal_cnode **head; |
1674 | 1778 | ||
1675 | head= &(journal_hash(table, sb, block)) ; | 1779 | head = &(journal_hash(table, sb, block)); |
1676 | if (!head) { | 1780 | if (!head) { |
1677 | return ; | 1781 | return; |
1678 | } | 1782 | } |
1679 | cur = *head ; | 1783 | cur = *head; |
1680 | while(cur) { | 1784 | while (cur) { |
1681 | if (cur->blocknr == block && cur->sb == sb && (jl == NULL || jl == cur->jlist) && | 1785 | if (cur->blocknr == block && cur->sb == sb |
1682 | (!test_bit(BLOCK_FREED, &cur->state) || remove_freed)) { | 1786 | && (jl == NULL || jl == cur->jlist) |
1683 | if (cur->hnext) { | 1787 | && (!test_bit(BLOCK_FREED, &cur->state) || remove_freed)) { |
1684 | cur->hnext->hprev = cur->hprev ; | 1788 | if (cur->hnext) { |
1685 | } | 1789 | cur->hnext->hprev = cur->hprev; |
1686 | if (cur->hprev) { | 1790 | } |
1687 | cur->hprev->hnext = cur->hnext ; | 1791 | if (cur->hprev) { |
1688 | } else { | 1792 | cur->hprev->hnext = cur->hnext; |
1689 | *head = cur->hnext ; | 1793 | } else { |
1690 | } | 1794 | *head = cur->hnext; |
1691 | cur->blocknr = 0 ; | 1795 | } |
1692 | cur->sb = NULL ; | 1796 | cur->blocknr = 0; |
1693 | cur->state = 0 ; | 1797 | cur->sb = NULL; |
1694 | if (cur->bh && cur->jlist) /* anybody who clears the cur->bh will also dec the nonzerolen */ | 1798 | cur->state = 0; |
1695 | atomic_dec(&(cur->jlist->j_nonzerolen)) ; | 1799 | if (cur->bh && cur->jlist) /* anybody who clears the cur->bh will also dec the nonzerolen */ |
1696 | cur->bh = NULL ; | 1800 | atomic_dec(&(cur->jlist->j_nonzerolen)); |
1697 | cur->jlist = NULL ; | 1801 | cur->bh = NULL; |
1698 | } | 1802 | cur->jlist = NULL; |
1699 | cur = cur->hnext ; | 1803 | } |
1700 | } | 1804 | cur = cur->hnext; |
1701 | } | 1805 | } |
1702 | 1806 | } | |
1703 | static void free_journal_ram(struct super_block *p_s_sb) { | 1807 | |
1704 | struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb); | 1808 | static void free_journal_ram(struct super_block *p_s_sb) |
1705 | reiserfs_kfree(journal->j_current_jl, | 1809 | { |
1706 | sizeof(struct reiserfs_journal_list), p_s_sb); | 1810 | struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb); |
1707 | journal->j_num_lists--; | 1811 | reiserfs_kfree(journal->j_current_jl, |
1708 | 1812 | sizeof(struct reiserfs_journal_list), p_s_sb); | |
1709 | vfree(journal->j_cnode_free_orig) ; | 1813 | journal->j_num_lists--; |
1710 | free_list_bitmaps(p_s_sb, journal->j_list_bitmap) ; | 1814 | |
1711 | free_bitmap_nodes(p_s_sb) ; /* must be after free_list_bitmaps */ | 1815 | vfree(journal->j_cnode_free_orig); |
1712 | if (journal->j_header_bh) { | 1816 | free_list_bitmaps(p_s_sb, journal->j_list_bitmap); |
1713 | brelse(journal->j_header_bh) ; | 1817 | free_bitmap_nodes(p_s_sb); /* must be after free_list_bitmaps */ |
1714 | } | 1818 | if (journal->j_header_bh) { |
1715 | /* j_header_bh is on the journal dev, make sure not to release the journal | 1819 | brelse(journal->j_header_bh); |
1716 | * dev until we brelse j_header_bh | 1820 | } |
1717 | */ | 1821 | /* j_header_bh is on the journal dev, make sure not to release the journal |
1718 | release_journal_dev(p_s_sb, journal); | 1822 | * dev until we brelse j_header_bh |
1719 | vfree(journal) ; | 1823 | */ |
1824 | release_journal_dev(p_s_sb, journal); | ||
1825 | vfree(journal); | ||
1720 | } | 1826 | } |
1721 | 1827 | ||
1722 | /* | 1828 | /* |
1723 | ** call on unmount. Only set error to 1 if you haven't made your way out | 1829 | ** call on unmount. Only set error to 1 if you haven't made your way out |
1724 | ** of read_super() yet. Any other caller must keep error at 0. | 1830 | ** of read_super() yet. Any other caller must keep error at 0. |
1725 | */ | 1831 | */ |
1726 | static int do_journal_release(struct reiserfs_transaction_handle *th, struct super_block *p_s_sb, int error) { | 1832 | static int do_journal_release(struct reiserfs_transaction_handle *th, |
1727 | struct reiserfs_transaction_handle myth ; | 1833 | struct super_block *p_s_sb, int error) |
1728 | int flushed = 0; | 1834 | { |
1729 | struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb); | 1835 | struct reiserfs_transaction_handle myth; |
1730 | 1836 | int flushed = 0; | |
1731 | /* we only want to flush out transactions if we were called with error == 0 | 1837 | struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb); |
1732 | */ | 1838 | |
1733 | if (!error && !(p_s_sb->s_flags & MS_RDONLY)) { | 1839 | /* we only want to flush out transactions if we were called with error == 0 |
1734 | /* end the current trans */ | 1840 | */ |
1735 | BUG_ON (!th->t_trans_id); | 1841 | if (!error && !(p_s_sb->s_flags & MS_RDONLY)) { |
1736 | do_journal_end(th, p_s_sb,10, FLUSH_ALL) ; | 1842 | /* end the current trans */ |
1737 | 1843 | BUG_ON(!th->t_trans_id); | |
1738 | /* make sure something gets logged to force our way into the flush code */ | 1844 | do_journal_end(th, p_s_sb, 10, FLUSH_ALL); |
1739 | if (!journal_join(&myth, p_s_sb, 1)) { | 1845 | |
1740 | reiserfs_prepare_for_journal(p_s_sb, SB_BUFFER_WITH_SB(p_s_sb), 1) ; | 1846 | /* make sure something gets logged to force our way into the flush code */ |
1741 | journal_mark_dirty(&myth, p_s_sb, SB_BUFFER_WITH_SB(p_s_sb)) ; | 1847 | if (!journal_join(&myth, p_s_sb, 1)) { |
1742 | do_journal_end(&myth, p_s_sb,1, FLUSH_ALL) ; | 1848 | reiserfs_prepare_for_journal(p_s_sb, |
1743 | flushed = 1; | 1849 | SB_BUFFER_WITH_SB(p_s_sb), |
1744 | } | 1850 | 1); |
1745 | } | 1851 | journal_mark_dirty(&myth, p_s_sb, |
1746 | 1852 | SB_BUFFER_WITH_SB(p_s_sb)); | |
1747 | /* this also catches errors during the do_journal_end above */ | 1853 | do_journal_end(&myth, p_s_sb, 1, FLUSH_ALL); |
1748 | if (!error && reiserfs_is_journal_aborted(journal)) { | 1854 | flushed = 1; |
1749 | memset(&myth, 0, sizeof(myth)); | 1855 | } |
1750 | if (!journal_join_abort(&myth, p_s_sb, 1)) { | 1856 | } |
1751 | reiserfs_prepare_for_journal(p_s_sb, SB_BUFFER_WITH_SB(p_s_sb), 1) ; | 1857 | |
1752 | journal_mark_dirty(&myth, p_s_sb, SB_BUFFER_WITH_SB(p_s_sb)) ; | 1858 | /* this also catches errors during the do_journal_end above */ |
1753 | do_journal_end(&myth, p_s_sb, 1, FLUSH_ALL) ; | 1859 | if (!error && reiserfs_is_journal_aborted(journal)) { |
1754 | } | 1860 | memset(&myth, 0, sizeof(myth)); |
1755 | } | 1861 | if (!journal_join_abort(&myth, p_s_sb, 1)) { |
1756 | 1862 | reiserfs_prepare_for_journal(p_s_sb, | |
1757 | reiserfs_mounted_fs_count-- ; | 1863 | SB_BUFFER_WITH_SB(p_s_sb), |
1758 | /* wait for all commits to finish */ | 1864 | 1); |
1759 | cancel_delayed_work(&SB_JOURNAL(p_s_sb)->j_work); | 1865 | journal_mark_dirty(&myth, p_s_sb, |
1760 | flush_workqueue(commit_wq); | 1866 | SB_BUFFER_WITH_SB(p_s_sb)); |
1761 | if (!reiserfs_mounted_fs_count) { | 1867 | do_journal_end(&myth, p_s_sb, 1, FLUSH_ALL); |
1762 | destroy_workqueue(commit_wq); | 1868 | } |
1763 | commit_wq = NULL; | 1869 | } |
1764 | } | 1870 | |
1765 | 1871 | reiserfs_mounted_fs_count--; | |
1766 | free_journal_ram(p_s_sb) ; | 1872 | /* wait for all commits to finish */ |
1767 | 1873 | cancel_delayed_work(&SB_JOURNAL(p_s_sb)->j_work); | |
1768 | return 0 ; | 1874 | flush_workqueue(commit_wq); |
1875 | if (!reiserfs_mounted_fs_count) { | ||
1876 | destroy_workqueue(commit_wq); | ||
1877 | commit_wq = NULL; | ||
1878 | } | ||
1879 | |||
1880 | free_journal_ram(p_s_sb); | ||
1881 | |||
1882 | return 0; | ||
1769 | } | 1883 | } |
1770 | 1884 | ||
1771 | /* | 1885 | /* |
1772 | ** call on unmount. flush all journal trans, release all alloc'd ram | 1886 | ** call on unmount. flush all journal trans, release all alloc'd ram |
1773 | */ | 1887 | */ |
1774 | int journal_release(struct reiserfs_transaction_handle *th, struct super_block *p_s_sb) { | 1888 | int journal_release(struct reiserfs_transaction_handle *th, |
1775 | return do_journal_release(th, p_s_sb, 0) ; | 1889 | struct super_block *p_s_sb) |
1890 | { | ||
1891 | return do_journal_release(th, p_s_sb, 0); | ||
1776 | } | 1892 | } |
1893 | |||
1777 | /* | 1894 | /* |
1778 | ** only call from an error condition inside reiserfs_read_super! | 1895 | ** only call from an error condition inside reiserfs_read_super! |
1779 | */ | 1896 | */ |
1780 | int journal_release_error(struct reiserfs_transaction_handle *th, struct super_block *p_s_sb) { | 1897 | int journal_release_error(struct reiserfs_transaction_handle *th, |
1781 | return do_journal_release(th, p_s_sb, 1) ; | 1898 | struct super_block *p_s_sb) |
1899 | { | ||
1900 | return do_journal_release(th, p_s_sb, 1); | ||
1782 | } | 1901 | } |
1783 | 1902 | ||
1784 | /* compares description block with commit block. returns 1 if they differ, 0 if they are the same */ | 1903 | /* compares description block with commit block. returns 1 if they differ, 0 if they are the same */ |
1785 | static int journal_compare_desc_commit(struct super_block *p_s_sb, struct reiserfs_journal_desc *desc, | 1904 | static int journal_compare_desc_commit(struct super_block *p_s_sb, |
1786 | struct reiserfs_journal_commit *commit) { | 1905 | struct reiserfs_journal_desc *desc, |
1787 | if (get_commit_trans_id (commit) != get_desc_trans_id (desc) || | 1906 | struct reiserfs_journal_commit *commit) |
1788 | get_commit_trans_len (commit) != get_desc_trans_len (desc) || | 1907 | { |
1789 | get_commit_trans_len (commit) > SB_JOURNAL(p_s_sb)->j_trans_max || | 1908 | if (get_commit_trans_id(commit) != get_desc_trans_id(desc) || |
1790 | get_commit_trans_len (commit) <= 0 | 1909 | get_commit_trans_len(commit) != get_desc_trans_len(desc) || |
1791 | ) { | 1910 | get_commit_trans_len(commit) > SB_JOURNAL(p_s_sb)->j_trans_max || |
1792 | return 1 ; | 1911 | get_commit_trans_len(commit) <= 0) { |
1793 | } | 1912 | return 1; |
1794 | return 0 ; | 1913 | } |
1914 | return 0; | ||
1795 | } | 1915 | } |
1916 | |||
1796 | /* returns 0 if it did not find a description block | 1917 | /* returns 0 if it did not find a description block |
1797 | ** returns -1 if it found a corrupt commit block | 1918 | ** returns -1 if it found a corrupt commit block |
1798 | ** returns 1 if both desc and commit were valid | 1919 | ** returns 1 if both desc and commit were valid |
1799 | */ | 1920 | */ |
1800 | static int journal_transaction_is_valid(struct super_block *p_s_sb, struct buffer_head *d_bh, unsigned long *oldest_invalid_trans_id, unsigned long *newest_mount_id) { | 1921 | static int journal_transaction_is_valid(struct super_block *p_s_sb, |
1801 | struct reiserfs_journal_desc *desc ; | 1922 | struct buffer_head *d_bh, |
1802 | struct reiserfs_journal_commit *commit ; | 1923 | unsigned long *oldest_invalid_trans_id, |
1803 | struct buffer_head *c_bh ; | 1924 | unsigned long *newest_mount_id) |
1804 | unsigned long offset ; | 1925 | { |
1805 | 1926 | struct reiserfs_journal_desc *desc; | |
1806 | if (!d_bh) | 1927 | struct reiserfs_journal_commit *commit; |
1807 | return 0 ; | 1928 | struct buffer_head *c_bh; |
1808 | 1929 | unsigned long offset; | |
1809 | desc = (struct reiserfs_journal_desc *)d_bh->b_data ; | 1930 | |
1810 | if (get_desc_trans_len(desc) > 0 && !memcmp(get_journal_desc_magic (d_bh), JOURNAL_DESC_MAGIC, 8)) { | 1931 | if (!d_bh) |
1811 | if (oldest_invalid_trans_id && *oldest_invalid_trans_id && get_desc_trans_id(desc) > *oldest_invalid_trans_id) { | 1932 | return 0; |
1812 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-986: transaction " | 1933 | |
1813 | "is valid returning because trans_id %d is greater than " | 1934 | desc = (struct reiserfs_journal_desc *)d_bh->b_data; |
1814 | "oldest_invalid %lu", get_desc_trans_id(desc), | 1935 | if (get_desc_trans_len(desc) > 0 |
1815 | *oldest_invalid_trans_id); | 1936 | && !memcmp(get_journal_desc_magic(d_bh), JOURNAL_DESC_MAGIC, 8)) { |
1816 | return 0 ; | 1937 | if (oldest_invalid_trans_id && *oldest_invalid_trans_id |
1817 | } | 1938 | && get_desc_trans_id(desc) > *oldest_invalid_trans_id) { |
1818 | if (newest_mount_id && *newest_mount_id > get_desc_mount_id (desc)) { | 1939 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, |
1819 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1087: transaction " | 1940 | "journal-986: transaction " |
1820 | "is valid returning because mount_id %d is less than " | 1941 | "is valid returning because trans_id %d is greater than " |
1821 | "newest_mount_id %lu", get_desc_mount_id (desc), | 1942 | "oldest_invalid %lu", |
1822 | *newest_mount_id) ; | 1943 | get_desc_trans_id(desc), |
1823 | return -1 ; | 1944 | *oldest_invalid_trans_id); |
1824 | } | 1945 | return 0; |
1825 | if ( get_desc_trans_len(desc) > SB_JOURNAL(p_s_sb)->j_trans_max ) { | 1946 | } |
1826 | reiserfs_warning(p_s_sb, "journal-2018: Bad transaction length %d encountered, ignoring transaction", get_desc_trans_len(desc)); | 1947 | if (newest_mount_id |
1827 | return -1 ; | 1948 | && *newest_mount_id > get_desc_mount_id(desc)) { |
1828 | } | 1949 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, |
1829 | offset = d_bh->b_blocknr - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) ; | 1950 | "journal-1087: transaction " |
1830 | 1951 | "is valid returning because mount_id %d is less than " | |
1831 | /* ok, we have a journal description block, lets see if the transaction was valid */ | 1952 | "newest_mount_id %lu", |
1832 | c_bh = journal_bread(p_s_sb, SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + | 1953 | get_desc_mount_id(desc), |
1833 | ((offset + get_desc_trans_len(desc) + 1) % SB_ONDISK_JOURNAL_SIZE(p_s_sb))) ; | 1954 | *newest_mount_id); |
1834 | if (!c_bh) | 1955 | return -1; |
1835 | return 0 ; | 1956 | } |
1836 | commit = (struct reiserfs_journal_commit *)c_bh->b_data ; | 1957 | if (get_desc_trans_len(desc) > SB_JOURNAL(p_s_sb)->j_trans_max) { |
1837 | if (journal_compare_desc_commit(p_s_sb, desc, commit)) { | 1958 | reiserfs_warning(p_s_sb, |
1838 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, | 1959 | "journal-2018: Bad transaction length %d encountered, ignoring transaction", |
1839 | "journal_transaction_is_valid, commit offset %ld had bad " | 1960 | get_desc_trans_len(desc)); |
1840 | "time %d or length %d", | 1961 | return -1; |
1841 | c_bh->b_blocknr - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb), | 1962 | } |
1842 | get_commit_trans_id (commit), | 1963 | offset = d_bh->b_blocknr - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb); |
1843 | get_commit_trans_len(commit)); | 1964 | |
1844 | brelse(c_bh) ; | 1965 | /* ok, we have a journal description block, lets see if the transaction was valid */ |
1845 | if (oldest_invalid_trans_id) { | 1966 | c_bh = |
1846 | *oldest_invalid_trans_id = get_desc_trans_id(desc) ; | 1967 | journal_bread(p_s_sb, |
1847 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1004: " | 1968 | SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + |
1848 | "transaction_is_valid setting oldest invalid trans_id " | 1969 | ((offset + get_desc_trans_len(desc) + |
1849 | "to %d", get_desc_trans_id(desc)) ; | 1970 | 1) % SB_ONDISK_JOURNAL_SIZE(p_s_sb))); |
1850 | } | 1971 | if (!c_bh) |
1851 | return -1; | 1972 | return 0; |
1852 | } | 1973 | commit = (struct reiserfs_journal_commit *)c_bh->b_data; |
1853 | brelse(c_bh) ; | 1974 | if (journal_compare_desc_commit(p_s_sb, desc, commit)) { |
1854 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1006: found valid " | 1975 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, |
1855 | "transaction start offset %llu, len %d id %d", | 1976 | "journal_transaction_is_valid, commit offset %ld had bad " |
1856 | d_bh->b_blocknr - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb), | 1977 | "time %d or length %d", |
1857 | get_desc_trans_len(desc), get_desc_trans_id(desc)) ; | 1978 | c_bh->b_blocknr - |
1858 | return 1 ; | 1979 | SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb), |
1859 | } else { | 1980 | get_commit_trans_id(commit), |
1860 | return 0 ; | 1981 | get_commit_trans_len(commit)); |
1861 | } | 1982 | brelse(c_bh); |
1862 | } | 1983 | if (oldest_invalid_trans_id) { |
1863 | 1984 | *oldest_invalid_trans_id = | |
1864 | static void brelse_array(struct buffer_head **heads, int num) { | 1985 | get_desc_trans_id(desc); |
1865 | int i ; | 1986 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, |
1866 | for (i = 0 ; i < num ; i++) { | 1987 | "journal-1004: " |
1867 | brelse(heads[i]) ; | 1988 | "transaction_is_valid setting oldest invalid trans_id " |
1868 | } | 1989 | "to %d", |
1990 | get_desc_trans_id(desc)); | ||
1991 | } | ||
1992 | return -1; | ||
1993 | } | ||
1994 | brelse(c_bh); | ||
1995 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, | ||
1996 | "journal-1006: found valid " | ||
1997 | "transaction start offset %llu, len %d id %d", | ||
1998 | d_bh->b_blocknr - | ||
1999 | SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb), | ||
2000 | get_desc_trans_len(desc), | ||
2001 | get_desc_trans_id(desc)); | ||
2002 | return 1; | ||
2003 | } else { | ||
2004 | return 0; | ||
2005 | } | ||
2006 | } | ||
2007 | |||
2008 | static void brelse_array(struct buffer_head **heads, int num) | ||
2009 | { | ||
2010 | int i; | ||
2011 | for (i = 0; i < num; i++) { | ||
2012 | brelse(heads[i]); | ||
2013 | } | ||
1869 | } | 2014 | } |
1870 | 2015 | ||
1871 | /* | 2016 | /* |
@@ -1873,149 +2018,202 @@ static void brelse_array(struct buffer_head **heads, int num) { | |||
1873 | ** this either reads in a replays a transaction, or returns because the transaction | 2018 | ** this either reads in a replays a transaction, or returns because the transaction |
1874 | ** is invalid, or too old. | 2019 | ** is invalid, or too old. |
1875 | */ | 2020 | */ |
1876 | static int journal_read_transaction(struct super_block *p_s_sb, unsigned long cur_dblock, unsigned long oldest_start, | 2021 | static int journal_read_transaction(struct super_block *p_s_sb, |
1877 | unsigned long oldest_trans_id, unsigned long newest_mount_id) { | 2022 | unsigned long cur_dblock, |
1878 | struct reiserfs_journal *journal = SB_JOURNAL (p_s_sb); | 2023 | unsigned long oldest_start, |
1879 | struct reiserfs_journal_desc *desc ; | 2024 | unsigned long oldest_trans_id, |
1880 | struct reiserfs_journal_commit *commit ; | 2025 | unsigned long newest_mount_id) |
1881 | unsigned long trans_id = 0 ; | 2026 | { |
1882 | struct buffer_head *c_bh ; | 2027 | struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb); |
1883 | struct buffer_head *d_bh ; | 2028 | struct reiserfs_journal_desc *desc; |
1884 | struct buffer_head **log_blocks = NULL ; | 2029 | struct reiserfs_journal_commit *commit; |
1885 | struct buffer_head **real_blocks = NULL ; | 2030 | unsigned long trans_id = 0; |
1886 | unsigned long trans_offset ; | 2031 | struct buffer_head *c_bh; |
1887 | int i; | 2032 | struct buffer_head *d_bh; |
1888 | int trans_half; | 2033 | struct buffer_head **log_blocks = NULL; |
1889 | 2034 | struct buffer_head **real_blocks = NULL; | |
1890 | d_bh = journal_bread(p_s_sb, cur_dblock) ; | 2035 | unsigned long trans_offset; |
1891 | if (!d_bh) | 2036 | int i; |
1892 | return 1 ; | 2037 | int trans_half; |
1893 | desc = (struct reiserfs_journal_desc *)d_bh->b_data ; | 2038 | |
1894 | trans_offset = d_bh->b_blocknr - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) ; | 2039 | d_bh = journal_bread(p_s_sb, cur_dblock); |
1895 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1037: " | 2040 | if (!d_bh) |
1896 | "journal_read_transaction, offset %llu, len %d mount_id %d", | 2041 | return 1; |
1897 | d_bh->b_blocknr - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb), | 2042 | desc = (struct reiserfs_journal_desc *)d_bh->b_data; |
1898 | get_desc_trans_len(desc), get_desc_mount_id(desc)) ; | 2043 | trans_offset = d_bh->b_blocknr - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb); |
1899 | if (get_desc_trans_id(desc) < oldest_trans_id) { | 2044 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1037: " |
1900 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1039: " | 2045 | "journal_read_transaction, offset %llu, len %d mount_id %d", |
1901 | "journal_read_trans skipping because %lu is too old", | 2046 | d_bh->b_blocknr - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb), |
1902 | cur_dblock - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb)) ; | 2047 | get_desc_trans_len(desc), get_desc_mount_id(desc)); |
1903 | brelse(d_bh) ; | 2048 | if (get_desc_trans_id(desc) < oldest_trans_id) { |
1904 | return 1 ; | 2049 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1039: " |
1905 | } | 2050 | "journal_read_trans skipping because %lu is too old", |
1906 | if (get_desc_mount_id(desc) != newest_mount_id) { | 2051 | cur_dblock - |
1907 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1146: " | 2052 | SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb)); |
1908 | "journal_read_trans skipping because %d is != " | 2053 | brelse(d_bh); |
1909 | "newest_mount_id %lu", get_desc_mount_id(desc), | 2054 | return 1; |
1910 | newest_mount_id) ; | 2055 | } |
1911 | brelse(d_bh) ; | 2056 | if (get_desc_mount_id(desc) != newest_mount_id) { |
1912 | return 1 ; | 2057 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1146: " |
1913 | } | 2058 | "journal_read_trans skipping because %d is != " |
1914 | c_bh = journal_bread(p_s_sb, SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + | 2059 | "newest_mount_id %lu", get_desc_mount_id(desc), |
1915 | ((trans_offset + get_desc_trans_len(desc) + 1) % | 2060 | newest_mount_id); |
1916 | SB_ONDISK_JOURNAL_SIZE(p_s_sb))) ; | 2061 | brelse(d_bh); |
1917 | if (!c_bh) { | 2062 | return 1; |
1918 | brelse(d_bh) ; | 2063 | } |
1919 | return 1 ; | 2064 | c_bh = journal_bread(p_s_sb, SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + |
1920 | } | 2065 | ((trans_offset + get_desc_trans_len(desc) + 1) % |
1921 | commit = (struct reiserfs_journal_commit *)c_bh->b_data ; | 2066 | SB_ONDISK_JOURNAL_SIZE(p_s_sb))); |
1922 | if (journal_compare_desc_commit(p_s_sb, desc, commit)) { | 2067 | if (!c_bh) { |
1923 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal_read_transaction, " | 2068 | brelse(d_bh); |
1924 | "commit offset %llu had bad time %d or length %d", | 2069 | return 1; |
1925 | c_bh->b_blocknr - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb), | 2070 | } |
1926 | get_commit_trans_id(commit), get_commit_trans_len(commit)); | 2071 | commit = (struct reiserfs_journal_commit *)c_bh->b_data; |
1927 | brelse(c_bh) ; | 2072 | if (journal_compare_desc_commit(p_s_sb, desc, commit)) { |
1928 | brelse(d_bh) ; | 2073 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, |
1929 | return 1; | 2074 | "journal_read_transaction, " |
1930 | } | 2075 | "commit offset %llu had bad time %d or length %d", |
1931 | trans_id = get_desc_trans_id(desc) ; | 2076 | c_bh->b_blocknr - |
1932 | /* now we know we've got a good transaction, and it was inside the valid time ranges */ | 2077 | SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb), |
1933 | log_blocks = reiserfs_kmalloc(get_desc_trans_len(desc) * sizeof(struct buffer_head *), GFP_NOFS, p_s_sb) ; | 2078 | get_commit_trans_id(commit), |
1934 | real_blocks = reiserfs_kmalloc(get_desc_trans_len(desc) * sizeof(struct buffer_head *), GFP_NOFS, p_s_sb) ; | 2079 | get_commit_trans_len(commit)); |
1935 | if (!log_blocks || !real_blocks) { | 2080 | brelse(c_bh); |
1936 | brelse(c_bh) ; | 2081 | brelse(d_bh); |
1937 | brelse(d_bh) ; | 2082 | return 1; |
1938 | reiserfs_kfree(log_blocks, get_desc_trans_len(desc) * sizeof(struct buffer_head *), p_s_sb) ; | 2083 | } |
1939 | reiserfs_kfree(real_blocks, get_desc_trans_len(desc) * sizeof(struct buffer_head *), p_s_sb) ; | 2084 | trans_id = get_desc_trans_id(desc); |
1940 | reiserfs_warning(p_s_sb, "journal-1169: kmalloc failed, unable to mount FS") ; | 2085 | /* now we know we've got a good transaction, and it was inside the valid time ranges */ |
1941 | return -1 ; | 2086 | log_blocks = |
1942 | } | 2087 | reiserfs_kmalloc(get_desc_trans_len(desc) * |
1943 | /* get all the buffer heads */ | 2088 | sizeof(struct buffer_head *), GFP_NOFS, p_s_sb); |
1944 | trans_half = journal_trans_half (p_s_sb->s_blocksize) ; | 2089 | real_blocks = |
1945 | for(i = 0 ; i < get_desc_trans_len(desc) ; i++) { | 2090 | reiserfs_kmalloc(get_desc_trans_len(desc) * |
1946 | log_blocks[i] = journal_getblk(p_s_sb, SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + (trans_offset + 1 + i) % SB_ONDISK_JOURNAL_SIZE(p_s_sb)); | 2091 | sizeof(struct buffer_head *), GFP_NOFS, p_s_sb); |
1947 | if (i < trans_half) { | 2092 | if (!log_blocks || !real_blocks) { |
1948 | real_blocks[i] = sb_getblk(p_s_sb, le32_to_cpu(desc->j_realblock[i])) ; | 2093 | brelse(c_bh); |
1949 | } else { | 2094 | brelse(d_bh); |
1950 | real_blocks[i] = sb_getblk(p_s_sb, le32_to_cpu(commit->j_realblock[i - trans_half])) ; | 2095 | reiserfs_kfree(log_blocks, |
1951 | } | 2096 | get_desc_trans_len(desc) * |
1952 | if ( real_blocks[i]->b_blocknr > SB_BLOCK_COUNT(p_s_sb) ) { | 2097 | sizeof(struct buffer_head *), p_s_sb); |
1953 | reiserfs_warning(p_s_sb, "journal-1207: REPLAY FAILURE fsck required! Block to replay is outside of filesystem"); | 2098 | reiserfs_kfree(real_blocks, |
1954 | goto abort_replay; | 2099 | get_desc_trans_len(desc) * |
1955 | } | 2100 | sizeof(struct buffer_head *), p_s_sb); |
1956 | /* make sure we don't try to replay onto log or reserved area */ | 2101 | reiserfs_warning(p_s_sb, |
1957 | if (is_block_in_log_or_reserved_area(p_s_sb, real_blocks[i]->b_blocknr)) { | 2102 | "journal-1169: kmalloc failed, unable to mount FS"); |
1958 | reiserfs_warning(p_s_sb, "journal-1204: REPLAY FAILURE fsck required! Trying to replay onto a log block") ; | 2103 | return -1; |
1959 | abort_replay: | 2104 | } |
1960 | brelse_array(log_blocks, i) ; | 2105 | /* get all the buffer heads */ |
1961 | brelse_array(real_blocks, i) ; | 2106 | trans_half = journal_trans_half(p_s_sb->s_blocksize); |
1962 | brelse(c_bh) ; | 2107 | for (i = 0; i < get_desc_trans_len(desc); i++) { |
1963 | brelse(d_bh) ; | 2108 | log_blocks[i] = |
1964 | reiserfs_kfree(log_blocks, get_desc_trans_len(desc) * sizeof(struct buffer_head *), p_s_sb) ; | 2109 | journal_getblk(p_s_sb, |
1965 | reiserfs_kfree(real_blocks, get_desc_trans_len(desc) * sizeof(struct buffer_head *), p_s_sb) ; | 2110 | SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + |
1966 | return -1 ; | 2111 | (trans_offset + 1 + |
1967 | } | 2112 | i) % SB_ONDISK_JOURNAL_SIZE(p_s_sb)); |
1968 | } | 2113 | if (i < trans_half) { |
1969 | /* read in the log blocks, memcpy to the corresponding real block */ | 2114 | real_blocks[i] = |
1970 | ll_rw_block(READ, get_desc_trans_len(desc), log_blocks) ; | 2115 | sb_getblk(p_s_sb, |
1971 | for (i = 0 ; i < get_desc_trans_len(desc) ; i++) { | 2116 | le32_to_cpu(desc->j_realblock[i])); |
1972 | wait_on_buffer(log_blocks[i]) ; | 2117 | } else { |
1973 | if (!buffer_uptodate(log_blocks[i])) { | 2118 | real_blocks[i] = |
1974 | reiserfs_warning(p_s_sb, "journal-1212: REPLAY FAILURE fsck required! buffer write failed") ; | 2119 | sb_getblk(p_s_sb, |
1975 | brelse_array(log_blocks + i, get_desc_trans_len(desc) - i) ; | 2120 | le32_to_cpu(commit-> |
1976 | brelse_array(real_blocks, get_desc_trans_len(desc)) ; | 2121 | j_realblock[i - trans_half])); |
1977 | brelse(c_bh) ; | 2122 | } |
1978 | brelse(d_bh) ; | 2123 | if (real_blocks[i]->b_blocknr > SB_BLOCK_COUNT(p_s_sb)) { |
1979 | reiserfs_kfree(log_blocks, get_desc_trans_len(desc) * sizeof(struct buffer_head *), p_s_sb) ; | 2124 | reiserfs_warning(p_s_sb, |
1980 | reiserfs_kfree(real_blocks, get_desc_trans_len(desc) * sizeof(struct buffer_head *), p_s_sb) ; | 2125 | "journal-1207: REPLAY FAILURE fsck required! Block to replay is outside of filesystem"); |
1981 | return -1 ; | 2126 | goto abort_replay; |
1982 | } | 2127 | } |
1983 | memcpy(real_blocks[i]->b_data, log_blocks[i]->b_data, real_blocks[i]->b_size) ; | 2128 | /* make sure we don't try to replay onto log or reserved area */ |
1984 | set_buffer_uptodate(real_blocks[i]) ; | 2129 | if (is_block_in_log_or_reserved_area |
1985 | brelse(log_blocks[i]) ; | 2130 | (p_s_sb, real_blocks[i]->b_blocknr)) { |
1986 | } | 2131 | reiserfs_warning(p_s_sb, |
1987 | /* flush out the real blocks */ | 2132 | "journal-1204: REPLAY FAILURE fsck required! Trying to replay onto a log block"); |
1988 | for (i = 0 ; i < get_desc_trans_len(desc) ; i++) { | 2133 | abort_replay: |
1989 | set_buffer_dirty(real_blocks[i]) ; | 2134 | brelse_array(log_blocks, i); |
1990 | ll_rw_block(WRITE, 1, real_blocks + i) ; | 2135 | brelse_array(real_blocks, i); |
1991 | } | 2136 | brelse(c_bh); |
1992 | for (i = 0 ; i < get_desc_trans_len(desc) ; i++) { | 2137 | brelse(d_bh); |
1993 | wait_on_buffer(real_blocks[i]) ; | 2138 | reiserfs_kfree(log_blocks, |
1994 | if (!buffer_uptodate(real_blocks[i])) { | 2139 | get_desc_trans_len(desc) * |
1995 | reiserfs_warning(p_s_sb, "journal-1226: REPLAY FAILURE, fsck required! buffer write failed") ; | 2140 | sizeof(struct buffer_head *), p_s_sb); |
1996 | brelse_array(real_blocks + i, get_desc_trans_len(desc) - i) ; | 2141 | reiserfs_kfree(real_blocks, |
1997 | brelse(c_bh) ; | 2142 | get_desc_trans_len(desc) * |
1998 | brelse(d_bh) ; | 2143 | sizeof(struct buffer_head *), p_s_sb); |
1999 | reiserfs_kfree(log_blocks, get_desc_trans_len(desc) * sizeof(struct buffer_head *), p_s_sb) ; | 2144 | return -1; |
2000 | reiserfs_kfree(real_blocks, get_desc_trans_len(desc) * sizeof(struct buffer_head *), p_s_sb) ; | 2145 | } |
2001 | return -1 ; | 2146 | } |
2002 | } | 2147 | /* read in the log blocks, memcpy to the corresponding real block */ |
2003 | brelse(real_blocks[i]) ; | 2148 | ll_rw_block(READ, get_desc_trans_len(desc), log_blocks); |
2004 | } | 2149 | for (i = 0; i < get_desc_trans_len(desc); i++) { |
2005 | cur_dblock = SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + ((trans_offset + get_desc_trans_len(desc) + 2) % SB_ONDISK_JOURNAL_SIZE(p_s_sb)) ; | 2150 | wait_on_buffer(log_blocks[i]); |
2006 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1095: setting journal " | 2151 | if (!buffer_uptodate(log_blocks[i])) { |
2007 | "start to offset %ld", | 2152 | reiserfs_warning(p_s_sb, |
2008 | cur_dblock - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb)) ; | 2153 | "journal-1212: REPLAY FAILURE fsck required! buffer write failed"); |
2009 | 2154 | brelse_array(log_blocks + i, | |
2010 | /* init starting values for the first transaction, in case this is the last transaction to be replayed. */ | 2155 | get_desc_trans_len(desc) - i); |
2011 | journal->j_start = cur_dblock - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) ; | 2156 | brelse_array(real_blocks, get_desc_trans_len(desc)); |
2012 | journal->j_last_flush_trans_id = trans_id ; | 2157 | brelse(c_bh); |
2013 | journal->j_trans_id = trans_id + 1; | 2158 | brelse(d_bh); |
2014 | brelse(c_bh) ; | 2159 | reiserfs_kfree(log_blocks, |
2015 | brelse(d_bh) ; | 2160 | get_desc_trans_len(desc) * |
2016 | reiserfs_kfree(log_blocks, le32_to_cpu(desc->j_len) * sizeof(struct buffer_head *), p_s_sb) ; | 2161 | sizeof(struct buffer_head *), p_s_sb); |
2017 | reiserfs_kfree(real_blocks, le32_to_cpu(desc->j_len) * sizeof(struct buffer_head *), p_s_sb) ; | 2162 | reiserfs_kfree(real_blocks, |
2018 | return 0 ; | 2163 | get_desc_trans_len(desc) * |
2164 | sizeof(struct buffer_head *), p_s_sb); | ||
2165 | return -1; | ||
2166 | } | ||
2167 | memcpy(real_blocks[i]->b_data, log_blocks[i]->b_data, | ||
2168 | real_blocks[i]->b_size); | ||
2169 | set_buffer_uptodate(real_blocks[i]); | ||
2170 | brelse(log_blocks[i]); | ||
2171 | } | ||
2172 | /* flush out the real blocks */ | ||
2173 | for (i = 0; i < get_desc_trans_len(desc); i++) { | ||
2174 | set_buffer_dirty(real_blocks[i]); | ||
2175 | ll_rw_block(WRITE, 1, real_blocks + i); | ||
2176 | } | ||
2177 | for (i = 0; i < get_desc_trans_len(desc); i++) { | ||
2178 | wait_on_buffer(real_blocks[i]); | ||
2179 | if (!buffer_uptodate(real_blocks[i])) { | ||
2180 | reiserfs_warning(p_s_sb, | ||
2181 | "journal-1226: REPLAY FAILURE, fsck required! buffer write failed"); | ||
2182 | brelse_array(real_blocks + i, | ||
2183 | get_desc_trans_len(desc) - i); | ||
2184 | brelse(c_bh); | ||
2185 | brelse(d_bh); | ||
2186 | reiserfs_kfree(log_blocks, | ||
2187 | get_desc_trans_len(desc) * | ||
2188 | sizeof(struct buffer_head *), p_s_sb); | ||
2189 | reiserfs_kfree(real_blocks, | ||
2190 | get_desc_trans_len(desc) * | ||
2191 | sizeof(struct buffer_head *), p_s_sb); | ||
2192 | return -1; | ||
2193 | } | ||
2194 | brelse(real_blocks[i]); | ||
2195 | } | ||
2196 | cur_dblock = | ||
2197 | SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + | ||
2198 | ((trans_offset + get_desc_trans_len(desc) + | ||
2199 | 2) % SB_ONDISK_JOURNAL_SIZE(p_s_sb)); | ||
2200 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, | ||
2201 | "journal-1095: setting journal " "start to offset %ld", | ||
2202 | cur_dblock - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb)); | ||
2203 | |||
2204 | /* init starting values for the first transaction, in case this is the last transaction to be replayed. */ | ||
2205 | journal->j_start = cur_dblock - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb); | ||
2206 | journal->j_last_flush_trans_id = trans_id; | ||
2207 | journal->j_trans_id = trans_id + 1; | ||
2208 | brelse(c_bh); | ||
2209 | brelse(d_bh); | ||
2210 | reiserfs_kfree(log_blocks, | ||
2211 | le32_to_cpu(desc->j_len) * sizeof(struct buffer_head *), | ||
2212 | p_s_sb); | ||
2213 | reiserfs_kfree(real_blocks, | ||
2214 | le32_to_cpu(desc->j_len) * sizeof(struct buffer_head *), | ||
2215 | p_s_sb); | ||
2216 | return 0; | ||
2019 | } | 2217 | } |
2020 | 2218 | ||
2021 | /* This function reads blocks starting from block and to max_block of bufsize | 2219 | /* This function reads blocks starting from block and to max_block of bufsize |
@@ -2024,39 +2222,39 @@ abort_replay: | |||
2024 | Right now it is only used from journal code. But later we might use it | 2222 | Right now it is only used from journal code. But later we might use it |
2025 | from other places. | 2223 | from other places. |
2026 | Note: Do not use journal_getblk/sb_getblk functions here! */ | 2224 | Note: Do not use journal_getblk/sb_getblk functions here! */ |
2027 | static struct buffer_head * reiserfs_breada (struct block_device *dev, int block, int bufsize, | 2225 | static struct buffer_head *reiserfs_breada(struct block_device *dev, int block, |
2028 | unsigned int max_block) | 2226 | int bufsize, unsigned int max_block) |
2029 | { | 2227 | { |
2030 | struct buffer_head * bhlist[BUFNR]; | 2228 | struct buffer_head *bhlist[BUFNR]; |
2031 | unsigned int blocks = BUFNR; | 2229 | unsigned int blocks = BUFNR; |
2032 | struct buffer_head * bh; | 2230 | struct buffer_head *bh; |
2033 | int i, j; | 2231 | int i, j; |
2034 | 2232 | ||
2035 | bh = __getblk (dev, block, bufsize ); | 2233 | bh = __getblk(dev, block, bufsize); |
2036 | if (buffer_uptodate (bh)) | 2234 | if (buffer_uptodate(bh)) |
2037 | return (bh); | 2235 | return (bh); |
2038 | 2236 | ||
2039 | if (block + BUFNR > max_block) { | 2237 | if (block + BUFNR > max_block) { |
2040 | blocks = max_block - block; | 2238 | blocks = max_block - block; |
2041 | } | 2239 | } |
2042 | bhlist[0] = bh; | 2240 | bhlist[0] = bh; |
2043 | j = 1; | 2241 | j = 1; |
2044 | for (i = 1; i < blocks; i++) { | 2242 | for (i = 1; i < blocks; i++) { |
2045 | bh = __getblk (dev, block + i, bufsize); | 2243 | bh = __getblk(dev, block + i, bufsize); |
2046 | if (buffer_uptodate (bh)) { | 2244 | if (buffer_uptodate(bh)) { |
2047 | brelse (bh); | 2245 | brelse(bh); |
2048 | break; | 2246 | break; |
2049 | } | 2247 | } else |
2050 | else bhlist[j++] = bh; | 2248 | bhlist[j++] = bh; |
2051 | } | 2249 | } |
2052 | ll_rw_block (READ, j, bhlist); | 2250 | ll_rw_block(READ, j, bhlist); |
2053 | for(i = 1; i < j; i++) | 2251 | for (i = 1; i < j; i++) |
2054 | brelse (bhlist[i]); | 2252 | brelse(bhlist[i]); |
2055 | bh = bhlist[0]; | 2253 | bh = bhlist[0]; |
2056 | wait_on_buffer (bh); | 2254 | wait_on_buffer(bh); |
2057 | if (buffer_uptodate (bh)) | 2255 | if (buffer_uptodate(bh)) |
2058 | return bh; | 2256 | return bh; |
2059 | brelse (bh); | 2257 | brelse(bh); |
2060 | return NULL; | 2258 | return NULL; |
2061 | } | 2259 | } |
2062 | 2260 | ||
@@ -2069,218 +2267,250 @@ static struct buffer_head * reiserfs_breada (struct block_device *dev, int block | |||
2069 | ** | 2267 | ** |
2070 | ** On exit, it sets things up so the first transaction will work correctly. | 2268 | ** On exit, it sets things up so the first transaction will work correctly. |
2071 | */ | 2269 | */ |
2072 | static int journal_read(struct super_block *p_s_sb) { | 2270 | static int journal_read(struct super_block *p_s_sb) |
2073 | struct reiserfs_journal *journal = SB_JOURNAL (p_s_sb); | 2271 | { |
2074 | struct reiserfs_journal_desc *desc ; | 2272 | struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb); |
2075 | unsigned long oldest_trans_id = 0; | 2273 | struct reiserfs_journal_desc *desc; |
2076 | unsigned long oldest_invalid_trans_id = 0 ; | 2274 | unsigned long oldest_trans_id = 0; |
2077 | time_t start ; | 2275 | unsigned long oldest_invalid_trans_id = 0; |
2078 | unsigned long oldest_start = 0; | 2276 | time_t start; |
2079 | unsigned long cur_dblock = 0 ; | 2277 | unsigned long oldest_start = 0; |
2080 | unsigned long newest_mount_id = 9 ; | 2278 | unsigned long cur_dblock = 0; |
2081 | struct buffer_head *d_bh ; | 2279 | unsigned long newest_mount_id = 9; |
2082 | struct reiserfs_journal_header *jh ; | 2280 | struct buffer_head *d_bh; |
2083 | int valid_journal_header = 0 ; | 2281 | struct reiserfs_journal_header *jh; |
2084 | int replay_count = 0 ; | 2282 | int valid_journal_header = 0; |
2085 | int continue_replay = 1 ; | 2283 | int replay_count = 0; |
2086 | int ret ; | 2284 | int continue_replay = 1; |
2087 | char b[BDEVNAME_SIZE]; | 2285 | int ret; |
2088 | 2286 | char b[BDEVNAME_SIZE]; | |
2089 | cur_dblock = SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) ; | 2287 | |
2090 | reiserfs_info (p_s_sb, "checking transaction log (%s)\n", | 2288 | cur_dblock = SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb); |
2091 | bdevname(journal->j_dev_bd, b)); | 2289 | reiserfs_info(p_s_sb, "checking transaction log (%s)\n", |
2092 | start = get_seconds(); | 2290 | bdevname(journal->j_dev_bd, b)); |
2093 | 2291 | start = get_seconds(); | |
2094 | /* step 1, read in the journal header block. Check the transaction it says | 2292 | |
2095 | ** is the first unflushed, and if that transaction is not valid, | 2293 | /* step 1, read in the journal header block. Check the transaction it says |
2096 | ** replay is done | 2294 | ** is the first unflushed, and if that transaction is not valid, |
2097 | */ | 2295 | ** replay is done |
2098 | journal->j_header_bh = journal_bread(p_s_sb, | 2296 | */ |
2099 | SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + | 2297 | journal->j_header_bh = journal_bread(p_s_sb, |
2100 | SB_ONDISK_JOURNAL_SIZE(p_s_sb)); | 2298 | SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) |
2101 | if (!journal->j_header_bh) { | 2299 | + SB_ONDISK_JOURNAL_SIZE(p_s_sb)); |
2102 | return 1 ; | 2300 | if (!journal->j_header_bh) { |
2103 | } | 2301 | return 1; |
2104 | jh = (struct reiserfs_journal_header *)(journal->j_header_bh->b_data) ; | 2302 | } |
2105 | if (le32_to_cpu(jh->j_first_unflushed_offset) >= 0 && | 2303 | jh = (struct reiserfs_journal_header *)(journal->j_header_bh->b_data); |
2106 | le32_to_cpu(jh->j_first_unflushed_offset) < SB_ONDISK_JOURNAL_SIZE(p_s_sb) && | 2304 | if (le32_to_cpu(jh->j_first_unflushed_offset) >= 0 && |
2107 | le32_to_cpu(jh->j_last_flush_trans_id) > 0) { | 2305 | le32_to_cpu(jh->j_first_unflushed_offset) < |
2108 | oldest_start = SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + | 2306 | SB_ONDISK_JOURNAL_SIZE(p_s_sb) |
2109 | le32_to_cpu(jh->j_first_unflushed_offset) ; | 2307 | && le32_to_cpu(jh->j_last_flush_trans_id) > 0) { |
2110 | oldest_trans_id = le32_to_cpu(jh->j_last_flush_trans_id) + 1; | 2308 | oldest_start = |
2111 | newest_mount_id = le32_to_cpu(jh->j_mount_id); | 2309 | SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + |
2112 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1153: found in " | 2310 | le32_to_cpu(jh->j_first_unflushed_offset); |
2113 | "header: first_unflushed_offset %d, last_flushed_trans_id " | 2311 | oldest_trans_id = le32_to_cpu(jh->j_last_flush_trans_id) + 1; |
2114 | "%lu", le32_to_cpu(jh->j_first_unflushed_offset), | 2312 | newest_mount_id = le32_to_cpu(jh->j_mount_id); |
2115 | le32_to_cpu(jh->j_last_flush_trans_id)) ; | 2313 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, |
2116 | valid_journal_header = 1 ; | 2314 | "journal-1153: found in " |
2117 | 2315 | "header: first_unflushed_offset %d, last_flushed_trans_id " | |
2118 | /* now, we try to read the first unflushed offset. If it is not valid, | 2316 | "%lu", le32_to_cpu(jh->j_first_unflushed_offset), |
2119 | ** there is nothing more we can do, and it makes no sense to read | 2317 | le32_to_cpu(jh->j_last_flush_trans_id)); |
2120 | ** through the whole log. | 2318 | valid_journal_header = 1; |
2121 | */ | 2319 | |
2122 | d_bh = journal_bread(p_s_sb, SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + le32_to_cpu(jh->j_first_unflushed_offset)) ; | 2320 | /* now, we try to read the first unflushed offset. If it is not valid, |
2123 | ret = journal_transaction_is_valid(p_s_sb, d_bh, NULL, NULL) ; | 2321 | ** there is nothing more we can do, and it makes no sense to read |
2124 | if (!ret) { | 2322 | ** through the whole log. |
2125 | continue_replay = 0 ; | 2323 | */ |
2126 | } | 2324 | d_bh = |
2127 | brelse(d_bh) ; | 2325 | journal_bread(p_s_sb, |
2128 | goto start_log_replay; | 2326 | SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + |
2129 | } | 2327 | le32_to_cpu(jh->j_first_unflushed_offset)); |
2130 | 2328 | ret = journal_transaction_is_valid(p_s_sb, d_bh, NULL, NULL); | |
2131 | if (continue_replay && bdev_read_only(p_s_sb->s_bdev)) { | 2329 | if (!ret) { |
2132 | reiserfs_warning (p_s_sb, | 2330 | continue_replay = 0; |
2133 | "clm-2076: device is readonly, unable to replay log") ; | 2331 | } |
2134 | return -1 ; | 2332 | brelse(d_bh); |
2135 | } | 2333 | goto start_log_replay; |
2136 | 2334 | } | |
2137 | /* ok, there are transactions that need to be replayed. start with the first log block, find | 2335 | |
2138 | ** all the valid transactions, and pick out the oldest. | 2336 | if (continue_replay && bdev_read_only(p_s_sb->s_bdev)) { |
2139 | */ | 2337 | reiserfs_warning(p_s_sb, |
2140 | while(continue_replay && cur_dblock < (SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + SB_ONDISK_JOURNAL_SIZE(p_s_sb))) { | 2338 | "clm-2076: device is readonly, unable to replay log"); |
2141 | /* Note that it is required for blocksize of primary fs device and journal | 2339 | return -1; |
2142 | device to be the same */ | 2340 | } |
2143 | d_bh = reiserfs_breada(journal->j_dev_bd, cur_dblock, p_s_sb->s_blocksize, | 2341 | |
2144 | SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + SB_ONDISK_JOURNAL_SIZE(p_s_sb)) ; | 2342 | /* ok, there are transactions that need to be replayed. start with the first log block, find |
2145 | ret = journal_transaction_is_valid(p_s_sb, d_bh, &oldest_invalid_trans_id, &newest_mount_id) ; | 2343 | ** all the valid transactions, and pick out the oldest. |
2146 | if (ret == 1) { | 2344 | */ |
2147 | desc = (struct reiserfs_journal_desc *)d_bh->b_data ; | 2345 | while (continue_replay |
2148 | if (oldest_start == 0) { /* init all oldest_ values */ | 2346 | && cur_dblock < |
2149 | oldest_trans_id = get_desc_trans_id(desc) ; | 2347 | (SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + |
2150 | oldest_start = d_bh->b_blocknr ; | 2348 | SB_ONDISK_JOURNAL_SIZE(p_s_sb))) { |
2151 | newest_mount_id = get_desc_mount_id(desc) ; | 2349 | /* Note that it is required for blocksize of primary fs device and journal |
2152 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1179: Setting " | 2350 | device to be the same */ |
2153 | "oldest_start to offset %llu, trans_id %lu", | 2351 | d_bh = |
2154 | oldest_start - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb), | 2352 | reiserfs_breada(journal->j_dev_bd, cur_dblock, |
2155 | oldest_trans_id) ; | 2353 | p_s_sb->s_blocksize, |
2156 | } else if (oldest_trans_id > get_desc_trans_id(desc)) { | 2354 | SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + |
2157 | /* one we just read was older */ | 2355 | SB_ONDISK_JOURNAL_SIZE(p_s_sb)); |
2158 | oldest_trans_id = get_desc_trans_id(desc) ; | 2356 | ret = |
2159 | oldest_start = d_bh->b_blocknr ; | 2357 | journal_transaction_is_valid(p_s_sb, d_bh, |
2160 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1180: Resetting " | 2358 | &oldest_invalid_trans_id, |
2161 | "oldest_start to offset %lu, trans_id %lu", | 2359 | &newest_mount_id); |
2162 | oldest_start - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb), | 2360 | if (ret == 1) { |
2163 | oldest_trans_id) ; | 2361 | desc = (struct reiserfs_journal_desc *)d_bh->b_data; |
2164 | } | 2362 | if (oldest_start == 0) { /* init all oldest_ values */ |
2165 | if (newest_mount_id < get_desc_mount_id(desc)) { | 2363 | oldest_trans_id = get_desc_trans_id(desc); |
2166 | newest_mount_id = get_desc_mount_id(desc) ; | 2364 | oldest_start = d_bh->b_blocknr; |
2365 | newest_mount_id = get_desc_mount_id(desc); | ||
2366 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, | ||
2367 | "journal-1179: Setting " | ||
2368 | "oldest_start to offset %llu, trans_id %lu", | ||
2369 | oldest_start - | ||
2370 | SB_ONDISK_JOURNAL_1st_BLOCK | ||
2371 | (p_s_sb), oldest_trans_id); | ||
2372 | } else if (oldest_trans_id > get_desc_trans_id(desc)) { | ||
2373 | /* one we just read was older */ | ||
2374 | oldest_trans_id = get_desc_trans_id(desc); | ||
2375 | oldest_start = d_bh->b_blocknr; | ||
2376 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, | ||
2377 | "journal-1180: Resetting " | ||
2378 | "oldest_start to offset %lu, trans_id %lu", | ||
2379 | oldest_start - | ||
2380 | SB_ONDISK_JOURNAL_1st_BLOCK | ||
2381 | (p_s_sb), oldest_trans_id); | ||
2382 | } | ||
2383 | if (newest_mount_id < get_desc_mount_id(desc)) { | ||
2384 | newest_mount_id = get_desc_mount_id(desc); | ||
2385 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, | ||
2386 | "journal-1299: Setting " | ||
2387 | "newest_mount_id to %d", | ||
2388 | get_desc_mount_id(desc)); | ||
2389 | } | ||
2390 | cur_dblock += get_desc_trans_len(desc) + 2; | ||
2391 | } else { | ||
2392 | cur_dblock++; | ||
2393 | } | ||
2394 | brelse(d_bh); | ||
2395 | } | ||
2396 | |||
2397 | start_log_replay: | ||
2398 | cur_dblock = oldest_start; | ||
2399 | if (oldest_trans_id) { | ||
2400 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, | ||
2401 | "journal-1206: Starting replay " | ||
2402 | "from offset %llu, trans_id %lu", | ||
2403 | cur_dblock - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb), | ||
2404 | oldest_trans_id); | ||
2405 | |||
2406 | } | ||
2407 | replay_count = 0; | ||
2408 | while (continue_replay && oldest_trans_id > 0) { | ||
2409 | ret = | ||
2410 | journal_read_transaction(p_s_sb, cur_dblock, oldest_start, | ||
2411 | oldest_trans_id, newest_mount_id); | ||
2412 | if (ret < 0) { | ||
2413 | return ret; | ||
2414 | } else if (ret != 0) { | ||
2415 | break; | ||
2416 | } | ||
2417 | cur_dblock = | ||
2418 | SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + journal->j_start; | ||
2419 | replay_count++; | ||
2420 | if (cur_dblock == oldest_start) | ||
2421 | break; | ||
2422 | } | ||
2423 | |||
2424 | if (oldest_trans_id == 0) { | ||
2425 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, | ||
2426 | "journal-1225: No valid " "transactions found"); | ||
2427 | } | ||
2428 | /* j_start does not get set correctly if we don't replay any transactions. | ||
2429 | ** if we had a valid journal_header, set j_start to the first unflushed transaction value, | ||
2430 | ** copy the trans_id from the header | ||
2431 | */ | ||
2432 | if (valid_journal_header && replay_count == 0) { | ||
2433 | journal->j_start = le32_to_cpu(jh->j_first_unflushed_offset); | ||
2434 | journal->j_trans_id = | ||
2435 | le32_to_cpu(jh->j_last_flush_trans_id) + 1; | ||
2436 | journal->j_last_flush_trans_id = | ||
2437 | le32_to_cpu(jh->j_last_flush_trans_id); | ||
2438 | journal->j_mount_id = le32_to_cpu(jh->j_mount_id) + 1; | ||
2439 | } else { | ||
2440 | journal->j_mount_id = newest_mount_id + 1; | ||
2441 | } | ||
2167 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1299: Setting " | 2442 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1299: Setting " |
2168 | "newest_mount_id to %d", get_desc_mount_id(desc)); | 2443 | "newest_mount_id to %lu", journal->j_mount_id); |
2169 | } | 2444 | journal->j_first_unflushed_offset = journal->j_start; |
2170 | cur_dblock += get_desc_trans_len(desc) + 2 ; | 2445 | if (replay_count > 0) { |
2171 | } else { | 2446 | reiserfs_info(p_s_sb, |
2172 | cur_dblock++ ; | 2447 | "replayed %d transactions in %lu seconds\n", |
2173 | } | 2448 | replay_count, get_seconds() - start); |
2174 | brelse(d_bh) ; | 2449 | } |
2175 | } | 2450 | if (!bdev_read_only(p_s_sb->s_bdev) && |
2176 | 2451 | _update_journal_header_block(p_s_sb, journal->j_start, | |
2177 | start_log_replay: | 2452 | journal->j_last_flush_trans_id)) { |
2178 | cur_dblock = oldest_start ; | 2453 | /* replay failed, caller must call free_journal_ram and abort |
2179 | if (oldest_trans_id) { | 2454 | ** the mount |
2180 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1206: Starting replay " | 2455 | */ |
2181 | "from offset %llu, trans_id %lu", | 2456 | return -1; |
2182 | cur_dblock - SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb), | 2457 | } |
2183 | oldest_trans_id) ; | 2458 | return 0; |
2184 | |||
2185 | } | ||
2186 | replay_count = 0 ; | ||
2187 | while(continue_replay && oldest_trans_id > 0) { | ||
2188 | ret = journal_read_transaction(p_s_sb, cur_dblock, oldest_start, oldest_trans_id, newest_mount_id) ; | ||
2189 | if (ret < 0) { | ||
2190 | return ret ; | ||
2191 | } else if (ret != 0) { | ||
2192 | break ; | ||
2193 | } | ||
2194 | cur_dblock = SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + journal->j_start ; | ||
2195 | replay_count++ ; | ||
2196 | if (cur_dblock == oldest_start) | ||
2197 | break; | ||
2198 | } | ||
2199 | |||
2200 | if (oldest_trans_id == 0) { | ||
2201 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1225: No valid " | ||
2202 | "transactions found") ; | ||
2203 | } | ||
2204 | /* j_start does not get set correctly if we don't replay any transactions. | ||
2205 | ** if we had a valid journal_header, set j_start to the first unflushed transaction value, | ||
2206 | ** copy the trans_id from the header | ||
2207 | */ | ||
2208 | if (valid_journal_header && replay_count == 0) { | ||
2209 | journal->j_start = le32_to_cpu(jh->j_first_unflushed_offset) ; | ||
2210 | journal->j_trans_id = le32_to_cpu(jh->j_last_flush_trans_id) + 1; | ||
2211 | journal->j_last_flush_trans_id = le32_to_cpu(jh->j_last_flush_trans_id) ; | ||
2212 | journal->j_mount_id = le32_to_cpu(jh->j_mount_id) + 1; | ||
2213 | } else { | ||
2214 | journal->j_mount_id = newest_mount_id + 1 ; | ||
2215 | } | ||
2216 | reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, "journal-1299: Setting " | ||
2217 | "newest_mount_id to %lu", journal->j_mount_id) ; | ||
2218 | journal->j_first_unflushed_offset = journal->j_start ; | ||
2219 | if (replay_count > 0) { | ||
2220 | reiserfs_info (p_s_sb, "replayed %d transactions in %lu seconds\n", | ||
2221 | replay_count, get_seconds() - start) ; | ||
2222 | } | ||
2223 | if (!bdev_read_only(p_s_sb->s_bdev) && | ||
2224 | _update_journal_header_block(p_s_sb, journal->j_start, | ||
2225 | journal->j_last_flush_trans_id)) | ||
2226 | { | ||
2227 | /* replay failed, caller must call free_journal_ram and abort | ||
2228 | ** the mount | ||
2229 | */ | ||
2230 | return -1 ; | ||
2231 | } | ||
2232 | return 0 ; | ||
2233 | } | 2459 | } |
2234 | 2460 | ||
2235 | static struct reiserfs_journal_list *alloc_journal_list(struct super_block *s) | 2461 | static struct reiserfs_journal_list *alloc_journal_list(struct super_block *s) |
2236 | { | 2462 | { |
2237 | struct reiserfs_journal_list *jl; | 2463 | struct reiserfs_journal_list *jl; |
2238 | retry: | 2464 | retry: |
2239 | jl = reiserfs_kmalloc(sizeof(struct reiserfs_journal_list), GFP_NOFS, s); | 2465 | jl = reiserfs_kmalloc(sizeof(struct reiserfs_journal_list), GFP_NOFS, |
2240 | if (!jl) { | 2466 | s); |
2241 | yield(); | 2467 | if (!jl) { |
2242 | goto retry; | 2468 | yield(); |
2243 | } | 2469 | goto retry; |
2244 | memset(jl, 0, sizeof(*jl)); | 2470 | } |
2245 | INIT_LIST_HEAD(&jl->j_list); | 2471 | memset(jl, 0, sizeof(*jl)); |
2246 | INIT_LIST_HEAD(&jl->j_working_list); | 2472 | INIT_LIST_HEAD(&jl->j_list); |
2247 | INIT_LIST_HEAD(&jl->j_tail_bh_list); | 2473 | INIT_LIST_HEAD(&jl->j_working_list); |
2248 | INIT_LIST_HEAD(&jl->j_bh_list); | 2474 | INIT_LIST_HEAD(&jl->j_tail_bh_list); |
2249 | sema_init(&jl->j_commit_lock, 1); | 2475 | INIT_LIST_HEAD(&jl->j_bh_list); |
2250 | SB_JOURNAL(s)->j_num_lists++; | 2476 | sema_init(&jl->j_commit_lock, 1); |
2251 | get_journal_list(jl); | 2477 | SB_JOURNAL(s)->j_num_lists++; |
2252 | return jl; | 2478 | get_journal_list(jl); |
2253 | } | 2479 | return jl; |
2254 | 2480 | } | |
2255 | static void journal_list_init(struct super_block *p_s_sb) { | 2481 | |
2256 | SB_JOURNAL(p_s_sb)->j_current_jl = alloc_journal_list(p_s_sb); | 2482 | static void journal_list_init(struct super_block *p_s_sb) |
2257 | } | 2483 | { |
2258 | 2484 | SB_JOURNAL(p_s_sb)->j_current_jl = alloc_journal_list(p_s_sb); | |
2259 | static int release_journal_dev( struct super_block *super, | 2485 | } |
2260 | struct reiserfs_journal *journal ) | 2486 | |
2261 | { | 2487 | static int release_journal_dev(struct super_block *super, |
2262 | int result; | 2488 | struct reiserfs_journal *journal) |
2263 | 2489 | { | |
2264 | result = 0; | 2490 | int result; |
2265 | 2491 | ||
2266 | if( journal -> j_dev_file != NULL ) { | 2492 | result = 0; |
2267 | result = filp_close( journal -> j_dev_file, NULL ); | 2493 | |
2268 | journal -> j_dev_file = NULL; | 2494 | if (journal->j_dev_file != NULL) { |
2269 | journal -> j_dev_bd = NULL; | 2495 | result = filp_close(journal->j_dev_file, NULL); |
2270 | } else if( journal -> j_dev_bd != NULL ) { | 2496 | journal->j_dev_file = NULL; |
2271 | result = blkdev_put( journal -> j_dev_bd ); | 2497 | journal->j_dev_bd = NULL; |
2272 | journal -> j_dev_bd = NULL; | 2498 | } else if (journal->j_dev_bd != NULL) { |
2273 | } | 2499 | result = blkdev_put(journal->j_dev_bd); |
2274 | 2500 | journal->j_dev_bd = NULL; | |
2275 | if( result != 0 ) { | 2501 | } |
2276 | reiserfs_warning(super, "sh-457: release_journal_dev: Cannot release journal device: %i", result ); | 2502 | |
2277 | } | 2503 | if (result != 0) { |
2278 | return result; | 2504 | reiserfs_warning(super, |
2279 | } | 2505 | "sh-457: release_journal_dev: Cannot release journal device: %i", |
2280 | 2506 | result); | |
2281 | static int journal_init_dev( struct super_block *super, | 2507 | } |
2282 | struct reiserfs_journal *journal, | 2508 | return result; |
2283 | const char *jdev_name ) | 2509 | } |
2510 | |||
2511 | static int journal_init_dev(struct super_block *super, | ||
2512 | struct reiserfs_journal *journal, | ||
2513 | const char *jdev_name) | ||
2284 | { | 2514 | { |
2285 | int result; | 2515 | int result; |
2286 | dev_t jdev; | 2516 | dev_t jdev; |
@@ -2289,50 +2519,51 @@ static int journal_init_dev( struct super_block *super, | |||
2289 | 2519 | ||
2290 | result = 0; | 2520 | result = 0; |
2291 | 2521 | ||
2292 | journal -> j_dev_bd = NULL; | 2522 | journal->j_dev_bd = NULL; |
2293 | journal -> j_dev_file = NULL; | 2523 | journal->j_dev_file = NULL; |
2294 | jdev = SB_ONDISK_JOURNAL_DEVICE( super ) ? | 2524 | jdev = SB_ONDISK_JOURNAL_DEVICE(super) ? |
2295 | new_decode_dev(SB_ONDISK_JOURNAL_DEVICE(super)) : super->s_dev; | 2525 | new_decode_dev(SB_ONDISK_JOURNAL_DEVICE(super)) : super->s_dev; |
2296 | 2526 | ||
2297 | if (bdev_read_only(super->s_bdev)) | 2527 | if (bdev_read_only(super->s_bdev)) |
2298 | blkdev_mode = FMODE_READ; | 2528 | blkdev_mode = FMODE_READ; |
2299 | 2529 | ||
2300 | /* there is no "jdev" option and journal is on separate device */ | 2530 | /* there is no "jdev" option and journal is on separate device */ |
2301 | if( ( !jdev_name || !jdev_name[ 0 ] ) ) { | 2531 | if ((!jdev_name || !jdev_name[0])) { |
2302 | journal->j_dev_bd = open_by_devnum(jdev, blkdev_mode); | 2532 | journal->j_dev_bd = open_by_devnum(jdev, blkdev_mode); |
2303 | if (IS_ERR(journal->j_dev_bd)) { | 2533 | if (IS_ERR(journal->j_dev_bd)) { |
2304 | result = PTR_ERR(journal->j_dev_bd); | 2534 | result = PTR_ERR(journal->j_dev_bd); |
2305 | journal->j_dev_bd = NULL; | 2535 | journal->j_dev_bd = NULL; |
2306 | reiserfs_warning (super, "sh-458: journal_init_dev: " | 2536 | reiserfs_warning(super, "sh-458: journal_init_dev: " |
2307 | "cannot init journal device '%s': %i", | 2537 | "cannot init journal device '%s': %i", |
2308 | __bdevname(jdev, b), result ); | 2538 | __bdevname(jdev, b), result); |
2309 | return result; | 2539 | return result; |
2310 | } else if (jdev != super->s_dev) | 2540 | } else if (jdev != super->s_dev) |
2311 | set_blocksize(journal->j_dev_bd, super->s_blocksize); | 2541 | set_blocksize(journal->j_dev_bd, super->s_blocksize); |
2312 | return 0; | 2542 | return 0; |
2313 | } | 2543 | } |
2314 | 2544 | ||
2315 | journal -> j_dev_file = filp_open( jdev_name, 0, 0 ); | 2545 | journal->j_dev_file = filp_open(jdev_name, 0, 0); |
2316 | if( !IS_ERR( journal -> j_dev_file ) ) { | 2546 | if (!IS_ERR(journal->j_dev_file)) { |
2317 | struct inode *jdev_inode = journal->j_dev_file->f_mapping->host; | 2547 | struct inode *jdev_inode = journal->j_dev_file->f_mapping->host; |
2318 | if( !S_ISBLK( jdev_inode -> i_mode ) ) { | 2548 | if (!S_ISBLK(jdev_inode->i_mode)) { |
2319 | reiserfs_warning(super, "journal_init_dev: '%s' is " | 2549 | reiserfs_warning(super, "journal_init_dev: '%s' is " |
2320 | "not a block device", jdev_name ); | 2550 | "not a block device", jdev_name); |
2321 | result = -ENOTBLK; | 2551 | result = -ENOTBLK; |
2322 | release_journal_dev( super, journal ); | 2552 | release_journal_dev(super, journal); |
2323 | } else { | 2553 | } else { |
2324 | /* ok */ | 2554 | /* ok */ |
2325 | journal->j_dev_bd = I_BDEV(jdev_inode); | 2555 | journal->j_dev_bd = I_BDEV(jdev_inode); |
2326 | set_blocksize(journal->j_dev_bd, super->s_blocksize); | 2556 | set_blocksize(journal->j_dev_bd, super->s_blocksize); |
2327 | reiserfs_info(super, "journal_init_dev: journal device: %s\n", | 2557 | reiserfs_info(super, |
2558 | "journal_init_dev: journal device: %s\n", | ||
2328 | bdevname(journal->j_dev_bd, b)); | 2559 | bdevname(journal->j_dev_bd, b)); |
2329 | } | 2560 | } |
2330 | } else { | 2561 | } else { |
2331 | result = PTR_ERR( journal -> j_dev_file ); | 2562 | result = PTR_ERR(journal->j_dev_file); |
2332 | journal -> j_dev_file = NULL; | 2563 | journal->j_dev_file = NULL; |
2333 | reiserfs_warning (super, | 2564 | reiserfs_warning(super, |
2334 | "journal_init_dev: Cannot open '%s': %i", | 2565 | "journal_init_dev: Cannot open '%s': %i", |
2335 | jdev_name, result ); | 2566 | jdev_name, result); |
2336 | } | 2567 | } |
2337 | return result; | 2568 | return result; |
2338 | } | 2569 | } |
@@ -2340,193 +2571,214 @@ static int journal_init_dev( struct super_block *super, | |||
2340 | /* | 2571 | /* |
2341 | ** must be called once on fs mount. calls journal_read for you | 2572 | ** must be called once on fs mount. calls journal_read for you |
2342 | */ | 2573 | */ |
2343 | int journal_init(struct super_block *p_s_sb, const char * j_dev_name, int old_format, unsigned int commit_max_age) { | 2574 | int journal_init(struct super_block *p_s_sb, const char *j_dev_name, |
2344 | int num_cnodes = SB_ONDISK_JOURNAL_SIZE(p_s_sb) * 2 ; | 2575 | int old_format, unsigned int commit_max_age) |
2345 | struct buffer_head *bhjh; | 2576 | { |
2346 | struct reiserfs_super_block * rs; | 2577 | int num_cnodes = SB_ONDISK_JOURNAL_SIZE(p_s_sb) * 2; |
2347 | struct reiserfs_journal_header *jh; | 2578 | struct buffer_head *bhjh; |
2348 | struct reiserfs_journal *journal; | 2579 | struct reiserfs_super_block *rs; |
2349 | struct reiserfs_journal_list *jl; | 2580 | struct reiserfs_journal_header *jh; |
2350 | char b[BDEVNAME_SIZE]; | 2581 | struct reiserfs_journal *journal; |
2351 | 2582 | struct reiserfs_journal_list *jl; | |
2352 | journal = SB_JOURNAL(p_s_sb) = vmalloc(sizeof (struct reiserfs_journal)) ; | 2583 | char b[BDEVNAME_SIZE]; |
2353 | if (!journal) { | 2584 | |
2354 | reiserfs_warning (p_s_sb, "journal-1256: unable to get memory for journal structure") ; | 2585 | journal = SB_JOURNAL(p_s_sb) = vmalloc(sizeof(struct reiserfs_journal)); |
2355 | return 1 ; | 2586 | if (!journal) { |
2356 | } | 2587 | reiserfs_warning(p_s_sb, |
2357 | memset(journal, 0, sizeof(struct reiserfs_journal)) ; | 2588 | "journal-1256: unable to get memory for journal structure"); |
2358 | INIT_LIST_HEAD(&journal->j_bitmap_nodes) ; | 2589 | return 1; |
2359 | INIT_LIST_HEAD (&journal->j_prealloc_list); | 2590 | } |
2360 | INIT_LIST_HEAD(&journal->j_working_list); | 2591 | memset(journal, 0, sizeof(struct reiserfs_journal)); |
2361 | INIT_LIST_HEAD(&journal->j_journal_list); | 2592 | INIT_LIST_HEAD(&journal->j_bitmap_nodes); |
2362 | journal->j_persistent_trans = 0; | 2593 | INIT_LIST_HEAD(&journal->j_prealloc_list); |
2363 | if (reiserfs_allocate_list_bitmaps(p_s_sb, | 2594 | INIT_LIST_HEAD(&journal->j_working_list); |
2364 | journal->j_list_bitmap, | 2595 | INIT_LIST_HEAD(&journal->j_journal_list); |
2365 | SB_BMAP_NR(p_s_sb))) | 2596 | journal->j_persistent_trans = 0; |
2366 | goto free_and_return ; | 2597 | if (reiserfs_allocate_list_bitmaps(p_s_sb, |
2367 | allocate_bitmap_nodes(p_s_sb) ; | 2598 | journal->j_list_bitmap, |
2368 | 2599 | SB_BMAP_NR(p_s_sb))) | |
2369 | /* reserved for journal area support */ | 2600 | goto free_and_return; |
2370 | SB_JOURNAL_1st_RESERVED_BLOCK(p_s_sb) = (old_format ? | 2601 | allocate_bitmap_nodes(p_s_sb); |
2371 | REISERFS_OLD_DISK_OFFSET_IN_BYTES / p_s_sb->s_blocksize + | 2602 | |
2372 | SB_BMAP_NR(p_s_sb) + 1 : | 2603 | /* reserved for journal area support */ |
2373 | REISERFS_DISK_OFFSET_IN_BYTES / p_s_sb->s_blocksize + 2); | 2604 | SB_JOURNAL_1st_RESERVED_BLOCK(p_s_sb) = (old_format ? |
2374 | 2605 | REISERFS_OLD_DISK_OFFSET_IN_BYTES | |
2375 | /* Sanity check to see is the standard journal fitting withing first bitmap | 2606 | / p_s_sb->s_blocksize + |
2376 | (actual for small blocksizes) */ | 2607 | SB_BMAP_NR(p_s_sb) + |
2377 | if ( !SB_ONDISK_JOURNAL_DEVICE( p_s_sb ) && | 2608 | 1 : |
2378 | (SB_JOURNAL_1st_RESERVED_BLOCK(p_s_sb) + SB_ONDISK_JOURNAL_SIZE(p_s_sb) > p_s_sb->s_blocksize * 8) ) { | 2609 | REISERFS_DISK_OFFSET_IN_BYTES / |
2379 | reiserfs_warning (p_s_sb, "journal-1393: journal does not fit for area " | 2610 | p_s_sb->s_blocksize + 2); |
2380 | "addressed by first of bitmap blocks. It starts at " | 2611 | |
2381 | "%u and its size is %u. Block size %ld", | 2612 | /* Sanity check to see is the standard journal fitting withing first bitmap |
2382 | SB_JOURNAL_1st_RESERVED_BLOCK(p_s_sb), | 2613 | (actual for small blocksizes) */ |
2383 | SB_ONDISK_JOURNAL_SIZE(p_s_sb), p_s_sb->s_blocksize); | 2614 | if (!SB_ONDISK_JOURNAL_DEVICE(p_s_sb) && |
2384 | goto free_and_return; | 2615 | (SB_JOURNAL_1st_RESERVED_BLOCK(p_s_sb) + |
2385 | } | 2616 | SB_ONDISK_JOURNAL_SIZE(p_s_sb) > p_s_sb->s_blocksize * 8)) { |
2386 | 2617 | reiserfs_warning(p_s_sb, | |
2387 | if( journal_init_dev( p_s_sb, journal, j_dev_name ) != 0 ) { | 2618 | "journal-1393: journal does not fit for area " |
2388 | reiserfs_warning (p_s_sb, "sh-462: unable to initialize jornal device"); | 2619 | "addressed by first of bitmap blocks. It starts at " |
2389 | goto free_and_return; | 2620 | "%u and its size is %u. Block size %ld", |
2390 | } | 2621 | SB_JOURNAL_1st_RESERVED_BLOCK(p_s_sb), |
2391 | 2622 | SB_ONDISK_JOURNAL_SIZE(p_s_sb), | |
2392 | rs = SB_DISK_SUPER_BLOCK(p_s_sb); | 2623 | p_s_sb->s_blocksize); |
2393 | 2624 | goto free_and_return; | |
2394 | /* read journal header */ | 2625 | } |
2395 | bhjh = journal_bread(p_s_sb, | 2626 | |
2396 | SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + SB_ONDISK_JOURNAL_SIZE(p_s_sb)); | 2627 | if (journal_init_dev(p_s_sb, journal, j_dev_name) != 0) { |
2397 | if (!bhjh) { | 2628 | reiserfs_warning(p_s_sb, |
2398 | reiserfs_warning (p_s_sb, "sh-459: unable to read journal header"); | 2629 | "sh-462: unable to initialize jornal device"); |
2399 | goto free_and_return; | 2630 | goto free_and_return; |
2400 | } | 2631 | } |
2401 | jh = (struct reiserfs_journal_header *)(bhjh->b_data); | 2632 | |
2402 | 2633 | rs = SB_DISK_SUPER_BLOCK(p_s_sb); | |
2403 | /* make sure that journal matches to the super block */ | 2634 | |
2404 | if (is_reiserfs_jr(rs) && (le32_to_cpu(jh->jh_journal.jp_journal_magic) != sb_jp_journal_magic(rs))) { | 2635 | /* read journal header */ |
2405 | reiserfs_warning (p_s_sb, "sh-460: journal header magic %x " | 2636 | bhjh = journal_bread(p_s_sb, |
2406 | "(device %s) does not match to magic found in super " | 2637 | SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + |
2407 | "block %x", | 2638 | SB_ONDISK_JOURNAL_SIZE(p_s_sb)); |
2408 | jh->jh_journal.jp_journal_magic, | 2639 | if (!bhjh) { |
2409 | bdevname( journal->j_dev_bd, b), | 2640 | reiserfs_warning(p_s_sb, |
2410 | sb_jp_journal_magic(rs)); | 2641 | "sh-459: unable to read journal header"); |
2411 | brelse (bhjh); | 2642 | goto free_and_return; |
2412 | goto free_and_return; | 2643 | } |
2413 | } | 2644 | jh = (struct reiserfs_journal_header *)(bhjh->b_data); |
2414 | 2645 | ||
2415 | journal->j_trans_max = le32_to_cpu (jh->jh_journal.jp_journal_trans_max); | 2646 | /* make sure that journal matches to the super block */ |
2416 | journal->j_max_batch = le32_to_cpu (jh->jh_journal.jp_journal_max_batch); | 2647 | if (is_reiserfs_jr(rs) |
2417 | journal->j_max_commit_age = le32_to_cpu (jh->jh_journal.jp_journal_max_commit_age); | 2648 | && (le32_to_cpu(jh->jh_journal.jp_journal_magic) != |
2418 | journal->j_max_trans_age = JOURNAL_MAX_TRANS_AGE; | 2649 | sb_jp_journal_magic(rs))) { |
2419 | 2650 | reiserfs_warning(p_s_sb, | |
2420 | if (journal->j_trans_max) { | 2651 | "sh-460: journal header magic %x " |
2421 | /* make sure these parameters are available, assign it if they are not */ | 2652 | "(device %s) does not match to magic found in super " |
2422 | __u32 initial = journal->j_trans_max; | 2653 | "block %x", jh->jh_journal.jp_journal_magic, |
2423 | __u32 ratio = 1; | 2654 | bdevname(journal->j_dev_bd, b), |
2424 | 2655 | sb_jp_journal_magic(rs)); | |
2425 | if (p_s_sb->s_blocksize < 4096) | 2656 | brelse(bhjh); |
2426 | ratio = 4096 / p_s_sb->s_blocksize; | 2657 | goto free_and_return; |
2427 | 2658 | } | |
2428 | if (SB_ONDISK_JOURNAL_SIZE(p_s_sb)/journal->j_trans_max < JOURNAL_MIN_RATIO) | 2659 | |
2429 | journal->j_trans_max = SB_ONDISK_JOURNAL_SIZE(p_s_sb) / JOURNAL_MIN_RATIO; | 2660 | journal->j_trans_max = le32_to_cpu(jh->jh_journal.jp_journal_trans_max); |
2430 | if (journal->j_trans_max > JOURNAL_TRANS_MAX_DEFAULT / ratio) | 2661 | journal->j_max_batch = le32_to_cpu(jh->jh_journal.jp_journal_max_batch); |
2431 | journal->j_trans_max = JOURNAL_TRANS_MAX_DEFAULT / ratio; | 2662 | journal->j_max_commit_age = |
2432 | if (journal->j_trans_max < JOURNAL_TRANS_MIN_DEFAULT / ratio) | 2663 | le32_to_cpu(jh->jh_journal.jp_journal_max_commit_age); |
2433 | journal->j_trans_max = JOURNAL_TRANS_MIN_DEFAULT / ratio; | 2664 | journal->j_max_trans_age = JOURNAL_MAX_TRANS_AGE; |
2434 | 2665 | ||
2435 | if (journal->j_trans_max != initial) | 2666 | if (journal->j_trans_max) { |
2436 | reiserfs_warning (p_s_sb, "sh-461: journal_init: wrong transaction max size (%u). Changed to %u", | 2667 | /* make sure these parameters are available, assign it if they are not */ |
2437 | initial, journal->j_trans_max); | 2668 | __u32 initial = journal->j_trans_max; |
2438 | 2669 | __u32 ratio = 1; | |
2439 | journal->j_max_batch = journal->j_trans_max* | 2670 | |
2440 | JOURNAL_MAX_BATCH_DEFAULT/JOURNAL_TRANS_MAX_DEFAULT; | 2671 | if (p_s_sb->s_blocksize < 4096) |
2441 | } | 2672 | ratio = 4096 / p_s_sb->s_blocksize; |
2442 | 2673 | ||
2443 | if (!journal->j_trans_max) { | 2674 | if (SB_ONDISK_JOURNAL_SIZE(p_s_sb) / journal->j_trans_max < |
2444 | /*we have the file system was created by old version of mkreiserfs | 2675 | JOURNAL_MIN_RATIO) |
2445 | so this field contains zero value */ | 2676 | journal->j_trans_max = |
2446 | journal->j_trans_max = JOURNAL_TRANS_MAX_DEFAULT ; | 2677 | SB_ONDISK_JOURNAL_SIZE(p_s_sb) / JOURNAL_MIN_RATIO; |
2447 | journal->j_max_batch = JOURNAL_MAX_BATCH_DEFAULT ; | 2678 | if (journal->j_trans_max > JOURNAL_TRANS_MAX_DEFAULT / ratio) |
2448 | journal->j_max_commit_age = JOURNAL_MAX_COMMIT_AGE ; | 2679 | journal->j_trans_max = |
2449 | 2680 | JOURNAL_TRANS_MAX_DEFAULT / ratio; | |
2450 | /* for blocksize >= 4096 - max transaction size is 1024. For block size < 4096 | 2681 | if (journal->j_trans_max < JOURNAL_TRANS_MIN_DEFAULT / ratio) |
2451 | trans max size is decreased proportionally */ | 2682 | journal->j_trans_max = |
2452 | if (p_s_sb->s_blocksize < 4096) { | 2683 | JOURNAL_TRANS_MIN_DEFAULT / ratio; |
2453 | journal->j_trans_max /= (4096 / p_s_sb->s_blocksize) ; | 2684 | |
2454 | journal->j_max_batch = (journal->j_trans_max) * 9 / 10 ; | 2685 | if (journal->j_trans_max != initial) |
2455 | } | 2686 | reiserfs_warning(p_s_sb, |
2456 | } | 2687 | "sh-461: journal_init: wrong transaction max size (%u). Changed to %u", |
2457 | 2688 | initial, journal->j_trans_max); | |
2458 | journal->j_default_max_commit_age = journal->j_max_commit_age; | 2689 | |
2459 | 2690 | journal->j_max_batch = journal->j_trans_max * | |
2460 | if (commit_max_age != 0) { | 2691 | JOURNAL_MAX_BATCH_DEFAULT / JOURNAL_TRANS_MAX_DEFAULT; |
2461 | journal->j_max_commit_age = commit_max_age; | 2692 | } |
2462 | journal->j_max_trans_age = commit_max_age; | 2693 | |
2463 | } | 2694 | if (!journal->j_trans_max) { |
2464 | 2695 | /*we have the file system was created by old version of mkreiserfs | |
2465 | reiserfs_info (p_s_sb, "journal params: device %s, size %u, " | 2696 | so this field contains zero value */ |
2466 | "journal first block %u, max trans len %u, max batch %u, " | 2697 | journal->j_trans_max = JOURNAL_TRANS_MAX_DEFAULT; |
2467 | "max commit age %u, max trans age %u\n", | 2698 | journal->j_max_batch = JOURNAL_MAX_BATCH_DEFAULT; |
2468 | bdevname( journal->j_dev_bd, b), | 2699 | journal->j_max_commit_age = JOURNAL_MAX_COMMIT_AGE; |
2469 | SB_ONDISK_JOURNAL_SIZE(p_s_sb), | 2700 | |
2470 | SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb), | 2701 | /* for blocksize >= 4096 - max transaction size is 1024. For block size < 4096 |
2471 | journal->j_trans_max, | 2702 | trans max size is decreased proportionally */ |
2472 | journal->j_max_batch, | 2703 | if (p_s_sb->s_blocksize < 4096) { |
2473 | journal->j_max_commit_age, | 2704 | journal->j_trans_max /= (4096 / p_s_sb->s_blocksize); |
2474 | journal->j_max_trans_age); | 2705 | journal->j_max_batch = (journal->j_trans_max) * 9 / 10; |
2475 | 2706 | } | |
2476 | brelse (bhjh); | 2707 | } |
2477 | 2708 | ||
2478 | journal->j_list_bitmap_index = 0 ; | 2709 | journal->j_default_max_commit_age = journal->j_max_commit_age; |
2479 | journal_list_init(p_s_sb) ; | 2710 | |
2480 | 2711 | if (commit_max_age != 0) { | |
2481 | memset(journal->j_list_hash_table, 0, JOURNAL_HASH_SIZE * sizeof(struct reiserfs_journal_cnode *)) ; | 2712 | journal->j_max_commit_age = commit_max_age; |
2482 | 2713 | journal->j_max_trans_age = commit_max_age; | |
2483 | INIT_LIST_HEAD(&journal->j_dirty_buffers) ; | 2714 | } |
2484 | spin_lock_init(&journal->j_dirty_buffers_lock) ; | 2715 | |
2485 | 2716 | reiserfs_info(p_s_sb, "journal params: device %s, size %u, " | |
2486 | journal->j_start = 0 ; | 2717 | "journal first block %u, max trans len %u, max batch %u, " |
2487 | journal->j_len = 0 ; | 2718 | "max commit age %u, max trans age %u\n", |
2488 | journal->j_len_alloc = 0 ; | 2719 | bdevname(journal->j_dev_bd, b), |
2489 | atomic_set(&(journal->j_wcount), 0) ; | 2720 | SB_ONDISK_JOURNAL_SIZE(p_s_sb), |
2490 | atomic_set(&(journal->j_async_throttle), 0) ; | 2721 | SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb), |
2491 | journal->j_bcount = 0 ; | 2722 | journal->j_trans_max, |
2492 | journal->j_trans_start_time = 0 ; | 2723 | journal->j_max_batch, |
2493 | journal->j_last = NULL ; | 2724 | journal->j_max_commit_age, journal->j_max_trans_age); |
2494 | journal->j_first = NULL ; | 2725 | |
2495 | init_waitqueue_head(&(journal->j_join_wait)) ; | 2726 | brelse(bhjh); |
2496 | sema_init(&journal->j_lock, 1); | 2727 | |
2497 | sema_init(&journal->j_flush_sem, 1); | 2728 | journal->j_list_bitmap_index = 0; |
2498 | 2729 | journal_list_init(p_s_sb); | |
2499 | journal->j_trans_id = 10 ; | 2730 | |
2500 | journal->j_mount_id = 10 ; | 2731 | memset(journal->j_list_hash_table, 0, |
2501 | journal->j_state = 0 ; | 2732 | JOURNAL_HASH_SIZE * sizeof(struct reiserfs_journal_cnode *)); |
2502 | atomic_set(&(journal->j_jlock), 0) ; | 2733 | |
2503 | journal->j_cnode_free_list = allocate_cnodes(num_cnodes) ; | 2734 | INIT_LIST_HEAD(&journal->j_dirty_buffers); |
2504 | journal->j_cnode_free_orig = journal->j_cnode_free_list ; | 2735 | spin_lock_init(&journal->j_dirty_buffers_lock); |
2505 | journal->j_cnode_free = journal->j_cnode_free_list ? num_cnodes : 0 ; | 2736 | |
2506 | journal->j_cnode_used = 0 ; | 2737 | journal->j_start = 0; |
2507 | journal->j_must_wait = 0 ; | 2738 | journal->j_len = 0; |
2508 | 2739 | journal->j_len_alloc = 0; | |
2509 | init_journal_hash(p_s_sb) ; | 2740 | atomic_set(&(journal->j_wcount), 0); |
2510 | jl = journal->j_current_jl; | 2741 | atomic_set(&(journal->j_async_throttle), 0); |
2511 | jl->j_list_bitmap = get_list_bitmap(p_s_sb, jl); | 2742 | journal->j_bcount = 0; |
2512 | if (!jl->j_list_bitmap) { | 2743 | journal->j_trans_start_time = 0; |
2513 | reiserfs_warning(p_s_sb, "journal-2005, get_list_bitmap failed for journal list 0") ; | 2744 | journal->j_last = NULL; |
2514 | goto free_and_return; | 2745 | journal->j_first = NULL; |
2515 | } | 2746 | init_waitqueue_head(&(journal->j_join_wait)); |
2516 | if (journal_read(p_s_sb) < 0) { | 2747 | sema_init(&journal->j_lock, 1); |
2517 | reiserfs_warning(p_s_sb, "Replay Failure, unable to mount") ; | 2748 | sema_init(&journal->j_flush_sem, 1); |
2518 | goto free_and_return; | 2749 | |
2519 | } | 2750 | journal->j_trans_id = 10; |
2520 | 2751 | journal->j_mount_id = 10; | |
2521 | reiserfs_mounted_fs_count++ ; | 2752 | journal->j_state = 0; |
2522 | if (reiserfs_mounted_fs_count <= 1) | 2753 | atomic_set(&(journal->j_jlock), 0); |
2523 | commit_wq = create_workqueue("reiserfs"); | 2754 | journal->j_cnode_free_list = allocate_cnodes(num_cnodes); |
2524 | 2755 | journal->j_cnode_free_orig = journal->j_cnode_free_list; | |
2525 | INIT_WORK(&journal->j_work, flush_async_commits, p_s_sb); | 2756 | journal->j_cnode_free = journal->j_cnode_free_list ? num_cnodes : 0; |
2526 | return 0 ; | 2757 | journal->j_cnode_used = 0; |
2527 | free_and_return: | 2758 | journal->j_must_wait = 0; |
2528 | free_journal_ram(p_s_sb); | 2759 | |
2529 | return 1; | 2760 | init_journal_hash(p_s_sb); |
2761 | jl = journal->j_current_jl; | ||
2762 | jl->j_list_bitmap = get_list_bitmap(p_s_sb, jl); | ||
2763 | if (!jl->j_list_bitmap) { | ||
2764 | reiserfs_warning(p_s_sb, | ||
2765 | "journal-2005, get_list_bitmap failed for journal list 0"); | ||
2766 | goto free_and_return; | ||
2767 | } | ||
2768 | if (journal_read(p_s_sb) < 0) { | ||
2769 | reiserfs_warning(p_s_sb, "Replay Failure, unable to mount"); | ||
2770 | goto free_and_return; | ||
2771 | } | ||
2772 | |||
2773 | reiserfs_mounted_fs_count++; | ||
2774 | if (reiserfs_mounted_fs_count <= 1) | ||
2775 | commit_wq = create_workqueue("reiserfs"); | ||
2776 | |||
2777 | INIT_WORK(&journal->j_work, flush_async_commits, p_s_sb); | ||
2778 | return 0; | ||
2779 | free_and_return: | ||
2780 | free_journal_ram(p_s_sb); | ||
2781 | return 1; | ||
2530 | } | 2782 | } |
2531 | 2783 | ||
2532 | /* | 2784 | /* |
@@ -2534,96 +2786,102 @@ free_and_return: | |||
2534 | ** be used by delete to make sure they don't write more than can fit inside a single | 2786 | ** be used by delete to make sure they don't write more than can fit inside a single |
2535 | ** transaction | 2787 | ** transaction |
2536 | */ | 2788 | */ |
2537 | int journal_transaction_should_end(struct reiserfs_transaction_handle *th, int new_alloc) { | 2789 | int journal_transaction_should_end(struct reiserfs_transaction_handle *th, |
2538 | struct reiserfs_journal *journal = SB_JOURNAL (th->t_super); | 2790 | int new_alloc) |
2539 | time_t now = get_seconds() ; | 2791 | { |
2540 | /* cannot restart while nested */ | 2792 | struct reiserfs_journal *journal = SB_JOURNAL(th->t_super); |
2541 | BUG_ON (!th->t_trans_id); | 2793 | time_t now = get_seconds(); |
2542 | if (th->t_refcount > 1) | 2794 | /* cannot restart while nested */ |
2543 | return 0 ; | 2795 | BUG_ON(!th->t_trans_id); |
2544 | if ( journal->j_must_wait > 0 || | 2796 | if (th->t_refcount > 1) |
2545 | (journal->j_len_alloc + new_alloc) >= journal->j_max_batch || | 2797 | return 0; |
2546 | atomic_read(&(journal->j_jlock)) || | 2798 | if (journal->j_must_wait > 0 || |
2547 | (now - journal->j_trans_start_time) > journal->j_max_trans_age || | 2799 | (journal->j_len_alloc + new_alloc) >= journal->j_max_batch || |
2548 | journal->j_cnode_free < (journal->j_trans_max * 3)) { | 2800 | atomic_read(&(journal->j_jlock)) || |
2549 | return 1 ; | 2801 | (now - journal->j_trans_start_time) > journal->j_max_trans_age || |
2550 | } | 2802 | journal->j_cnode_free < (journal->j_trans_max * 3)) { |
2551 | return 0 ; | 2803 | return 1; |
2804 | } | ||
2805 | return 0; | ||
2552 | } | 2806 | } |
2553 | 2807 | ||
2554 | /* this must be called inside a transaction, and requires the | 2808 | /* this must be called inside a transaction, and requires the |
2555 | ** kernel_lock to be held | 2809 | ** kernel_lock to be held |
2556 | */ | 2810 | */ |
2557 | void reiserfs_block_writes(struct reiserfs_transaction_handle *th) { | 2811 | void reiserfs_block_writes(struct reiserfs_transaction_handle *th) |
2558 | struct reiserfs_journal *journal = SB_JOURNAL (th->t_super); | 2812 | { |
2559 | BUG_ON (!th->t_trans_id); | 2813 | struct reiserfs_journal *journal = SB_JOURNAL(th->t_super); |
2560 | journal->j_must_wait = 1 ; | 2814 | BUG_ON(!th->t_trans_id); |
2561 | set_bit(J_WRITERS_BLOCKED, &journal->j_state) ; | 2815 | journal->j_must_wait = 1; |
2562 | return ; | 2816 | set_bit(J_WRITERS_BLOCKED, &journal->j_state); |
2817 | return; | ||
2563 | } | 2818 | } |
2564 | 2819 | ||
2565 | /* this must be called without a transaction started, and does not | 2820 | /* this must be called without a transaction started, and does not |
2566 | ** require BKL | 2821 | ** require BKL |
2567 | */ | 2822 | */ |
2568 | void reiserfs_allow_writes(struct super_block *s) { | 2823 | void reiserfs_allow_writes(struct super_block *s) |
2569 | struct reiserfs_journal *journal = SB_JOURNAL (s); | 2824 | { |
2570 | clear_bit(J_WRITERS_BLOCKED, &journal->j_state) ; | 2825 | struct reiserfs_journal *journal = SB_JOURNAL(s); |
2571 | wake_up(&journal->j_join_wait) ; | 2826 | clear_bit(J_WRITERS_BLOCKED, &journal->j_state); |
2827 | wake_up(&journal->j_join_wait); | ||
2572 | } | 2828 | } |
2573 | 2829 | ||
2574 | /* this must be called without a transaction started, and does not | 2830 | /* this must be called without a transaction started, and does not |
2575 | ** require BKL | 2831 | ** require BKL |
2576 | */ | 2832 | */ |
2577 | void reiserfs_wait_on_write_block(struct super_block *s) { | 2833 | void reiserfs_wait_on_write_block(struct super_block *s) |
2578 | struct reiserfs_journal *journal = SB_JOURNAL (s); | 2834 | { |
2579 | wait_event(journal->j_join_wait, | 2835 | struct reiserfs_journal *journal = SB_JOURNAL(s); |
2580 | !test_bit(J_WRITERS_BLOCKED, &journal->j_state)) ; | 2836 | wait_event(journal->j_join_wait, |
2581 | } | 2837 | !test_bit(J_WRITERS_BLOCKED, &journal->j_state)); |
2582 | 2838 | } | |
2583 | static void queue_log_writer(struct super_block *s) { | 2839 | |
2584 | wait_queue_t wait; | 2840 | static void queue_log_writer(struct super_block *s) |
2585 | struct reiserfs_journal *journal = SB_JOURNAL (s); | 2841 | { |
2586 | set_bit(J_WRITERS_QUEUED, &journal->j_state); | 2842 | wait_queue_t wait; |
2587 | 2843 | struct reiserfs_journal *journal = SB_JOURNAL(s); | |
2588 | /* | 2844 | set_bit(J_WRITERS_QUEUED, &journal->j_state); |
2589 | * we don't want to use wait_event here because | 2845 | |
2590 | * we only want to wait once. | 2846 | /* |
2591 | */ | 2847 | * we don't want to use wait_event here because |
2592 | init_waitqueue_entry(&wait, current); | 2848 | * we only want to wait once. |
2593 | add_wait_queue(&journal->j_join_wait, &wait); | 2849 | */ |
2594 | set_current_state(TASK_UNINTERRUPTIBLE); | 2850 | init_waitqueue_entry(&wait, current); |
2595 | if (test_bit(J_WRITERS_QUEUED, &journal->j_state)) | 2851 | add_wait_queue(&journal->j_join_wait, &wait); |
2596 | schedule(); | ||
2597 | current->state = TASK_RUNNING; | ||
2598 | remove_wait_queue(&journal->j_join_wait, &wait); | ||
2599 | } | ||
2600 | |||
2601 | static void wake_queued_writers(struct super_block *s) { | ||
2602 | struct reiserfs_journal *journal = SB_JOURNAL (s); | ||
2603 | if (test_and_clear_bit(J_WRITERS_QUEUED, &journal->j_state)) | ||
2604 | wake_up(&journal->j_join_wait); | ||
2605 | } | ||
2606 | |||
2607 | static void let_transaction_grow(struct super_block *sb, | ||
2608 | unsigned long trans_id) | ||
2609 | { | ||
2610 | struct reiserfs_journal *journal = SB_JOURNAL (sb); | ||
2611 | unsigned long bcount = journal->j_bcount; | ||
2612 | while(1) { | ||
2613 | set_current_state(TASK_UNINTERRUPTIBLE); | 2852 | set_current_state(TASK_UNINTERRUPTIBLE); |
2614 | schedule_timeout(1); | 2853 | if (test_bit(J_WRITERS_QUEUED, &journal->j_state)) |
2615 | journal->j_current_jl->j_state |= LIST_COMMIT_PENDING; | 2854 | schedule(); |
2616 | while ((atomic_read(&journal->j_wcount) > 0 || | 2855 | current->state = TASK_RUNNING; |
2617 | atomic_read(&journal->j_jlock)) && | 2856 | remove_wait_queue(&journal->j_join_wait, &wait); |
2618 | journal->j_trans_id == trans_id) { | 2857 | } |
2619 | queue_log_writer(sb); | 2858 | |
2859 | static void wake_queued_writers(struct super_block *s) | ||
2860 | { | ||
2861 | struct reiserfs_journal *journal = SB_JOURNAL(s); | ||
2862 | if (test_and_clear_bit(J_WRITERS_QUEUED, &journal->j_state)) | ||
2863 | wake_up(&journal->j_join_wait); | ||
2864 | } | ||
2865 | |||
2866 | static void let_transaction_grow(struct super_block *sb, unsigned long trans_id) | ||
2867 | { | ||
2868 | struct reiserfs_journal *journal = SB_JOURNAL(sb); | ||
2869 | unsigned long bcount = journal->j_bcount; | ||
2870 | while (1) { | ||
2871 | set_current_state(TASK_UNINTERRUPTIBLE); | ||
2872 | schedule_timeout(1); | ||
2873 | journal->j_current_jl->j_state |= LIST_COMMIT_PENDING; | ||
2874 | while ((atomic_read(&journal->j_wcount) > 0 || | ||
2875 | atomic_read(&journal->j_jlock)) && | ||
2876 | journal->j_trans_id == trans_id) { | ||
2877 | queue_log_writer(sb); | ||
2878 | } | ||
2879 | if (journal->j_trans_id != trans_id) | ||
2880 | break; | ||
2881 | if (bcount == journal->j_bcount) | ||
2882 | break; | ||
2883 | bcount = journal->j_bcount; | ||
2620 | } | 2884 | } |
2621 | if (journal->j_trans_id != trans_id) | ||
2622 | break; | ||
2623 | if (bcount == journal->j_bcount) | ||
2624 | break; | ||
2625 | bcount = journal->j_bcount; | ||
2626 | } | ||
2627 | } | 2885 | } |
2628 | 2886 | ||
2629 | /* join == true if you must join an existing transaction. | 2887 | /* join == true if you must join an existing transaction. |
@@ -2632,224 +2890,244 @@ static void let_transaction_grow(struct super_block *sb, | |||
2632 | ** this will block until the transaction is joinable. send the number of blocks you | 2890 | ** this will block until the transaction is joinable. send the number of blocks you |
2633 | ** expect to use in nblocks. | 2891 | ** expect to use in nblocks. |
2634 | */ | 2892 | */ |
2635 | static int do_journal_begin_r(struct reiserfs_transaction_handle *th, struct super_block * p_s_sb,unsigned long nblocks,int join) { | 2893 | static int do_journal_begin_r(struct reiserfs_transaction_handle *th, |
2636 | time_t now = get_seconds() ; | 2894 | struct super_block *p_s_sb, unsigned long nblocks, |
2637 | int old_trans_id ; | 2895 | int join) |
2638 | struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb); | 2896 | { |
2639 | struct reiserfs_transaction_handle myth; | 2897 | time_t now = get_seconds(); |
2640 | int sched_count = 0; | 2898 | int old_trans_id; |
2641 | int retval; | 2899 | struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb); |
2642 | 2900 | struct reiserfs_transaction_handle myth; | |
2643 | reiserfs_check_lock_depth(p_s_sb, "journal_begin") ; | 2901 | int sched_count = 0; |
2644 | if (nblocks > journal->j_trans_max) | 2902 | int retval; |
2645 | BUG(); | 2903 | |
2646 | 2904 | reiserfs_check_lock_depth(p_s_sb, "journal_begin"); | |
2647 | PROC_INFO_INC( p_s_sb, journal.journal_being ); | 2905 | if (nblocks > journal->j_trans_max) |
2648 | /* set here for journal_join */ | 2906 | BUG(); |
2649 | th->t_refcount = 1; | 2907 | |
2650 | th->t_super = p_s_sb ; | 2908 | PROC_INFO_INC(p_s_sb, journal.journal_being); |
2651 | 2909 | /* set here for journal_join */ | |
2652 | relock: | 2910 | th->t_refcount = 1; |
2653 | lock_journal(p_s_sb) ; | 2911 | th->t_super = p_s_sb; |
2654 | if (join != JBEGIN_ABORT && reiserfs_is_journal_aborted (journal)) { | 2912 | |
2655 | unlock_journal (p_s_sb); | 2913 | relock: |
2656 | retval = journal->j_errno; | 2914 | lock_journal(p_s_sb); |
2657 | goto out_fail; | 2915 | if (join != JBEGIN_ABORT && reiserfs_is_journal_aborted(journal)) { |
2658 | } | 2916 | unlock_journal(p_s_sb); |
2659 | journal->j_bcount++; | 2917 | retval = journal->j_errno; |
2660 | 2918 | goto out_fail; | |
2661 | if (test_bit(J_WRITERS_BLOCKED, &journal->j_state)) { | 2919 | } |
2662 | unlock_journal(p_s_sb) ; | 2920 | journal->j_bcount++; |
2663 | reiserfs_wait_on_write_block(p_s_sb) ; | 2921 | |
2664 | PROC_INFO_INC( p_s_sb, journal.journal_relock_writers ); | 2922 | if (test_bit(J_WRITERS_BLOCKED, &journal->j_state)) { |
2665 | goto relock ; | 2923 | unlock_journal(p_s_sb); |
2666 | } | 2924 | reiserfs_wait_on_write_block(p_s_sb); |
2667 | now = get_seconds(); | 2925 | PROC_INFO_INC(p_s_sb, journal.journal_relock_writers); |
2668 | 2926 | goto relock; | |
2669 | /* if there is no room in the journal OR | 2927 | } |
2670 | ** if this transaction is too old, and we weren't called joinable, wait for it to finish before beginning | 2928 | now = get_seconds(); |
2671 | ** we don't sleep if there aren't other writers | 2929 | |
2672 | */ | 2930 | /* if there is no room in the journal OR |
2673 | 2931 | ** if this transaction is too old, and we weren't called joinable, wait for it to finish before beginning | |
2674 | if ( (!join && journal->j_must_wait > 0) || | 2932 | ** we don't sleep if there aren't other writers |
2675 | ( !join && (journal->j_len_alloc + nblocks + 2) >= journal->j_max_batch) || | 2933 | */ |
2676 | (!join && atomic_read(&journal->j_wcount) > 0 && journal->j_trans_start_time > 0 && | 2934 | |
2677 | (now - journal->j_trans_start_time) > journal->j_max_trans_age) || | 2935 | if ((!join && journal->j_must_wait > 0) || |
2678 | (!join && atomic_read(&journal->j_jlock)) || | 2936 | (!join |
2679 | (!join && journal->j_cnode_free < (journal->j_trans_max * 3))) { | 2937 | && (journal->j_len_alloc + nblocks + 2) >= journal->j_max_batch) |
2680 | 2938 | || (!join && atomic_read(&journal->j_wcount) > 0 | |
2681 | old_trans_id = journal->j_trans_id; | 2939 | && journal->j_trans_start_time > 0 |
2682 | unlock_journal(p_s_sb) ; /* allow others to finish this transaction */ | 2940 | && (now - journal->j_trans_start_time) > |
2683 | 2941 | journal->j_max_trans_age) || (!join | |
2684 | if (!join && (journal->j_len_alloc + nblocks + 2) >= | 2942 | && atomic_read(&journal->j_jlock)) |
2685 | journal->j_max_batch && | 2943 | || (!join && journal->j_cnode_free < (journal->j_trans_max * 3))) { |
2686 | ((journal->j_len + nblocks + 2) * 100) < (journal->j_len_alloc * 75)) | 2944 | |
2687 | { | 2945 | old_trans_id = journal->j_trans_id; |
2688 | if (atomic_read(&journal->j_wcount) > 10) { | 2946 | unlock_journal(p_s_sb); /* allow others to finish this transaction */ |
2689 | sched_count++; | 2947 | |
2690 | queue_log_writer(p_s_sb); | 2948 | if (!join && (journal->j_len_alloc + nblocks + 2) >= |
2691 | goto relock; | 2949 | journal->j_max_batch && |
2692 | } | 2950 | ((journal->j_len + nblocks + 2) * 100) < |
2693 | } | 2951 | (journal->j_len_alloc * 75)) { |
2694 | /* don't mess with joining the transaction if all we have to do is | 2952 | if (atomic_read(&journal->j_wcount) > 10) { |
2695 | * wait for someone else to do a commit | 2953 | sched_count++; |
2696 | */ | 2954 | queue_log_writer(p_s_sb); |
2697 | if (atomic_read(&journal->j_jlock)) { | 2955 | goto relock; |
2698 | while (journal->j_trans_id == old_trans_id && | 2956 | } |
2699 | atomic_read(&journal->j_jlock)) { | 2957 | } |
2700 | queue_log_writer(p_s_sb); | 2958 | /* don't mess with joining the transaction if all we have to do is |
2701 | } | 2959 | * wait for someone else to do a commit |
2702 | goto relock; | 2960 | */ |
2703 | } | 2961 | if (atomic_read(&journal->j_jlock)) { |
2704 | retval = journal_join(&myth, p_s_sb, 1) ; | 2962 | while (journal->j_trans_id == old_trans_id && |
2705 | if (retval) | 2963 | atomic_read(&journal->j_jlock)) { |
2706 | goto out_fail; | 2964 | queue_log_writer(p_s_sb); |
2707 | 2965 | } | |
2708 | /* someone might have ended the transaction while we joined */ | 2966 | goto relock; |
2709 | if (old_trans_id != journal->j_trans_id) { | 2967 | } |
2710 | retval = do_journal_end(&myth, p_s_sb, 1, 0) ; | 2968 | retval = journal_join(&myth, p_s_sb, 1); |
2711 | } else { | 2969 | if (retval) |
2712 | retval = do_journal_end(&myth, p_s_sb, 1, COMMIT_NOW) ; | 2970 | goto out_fail; |
2713 | } | 2971 | |
2714 | 2972 | /* someone might have ended the transaction while we joined */ | |
2715 | if (retval) | 2973 | if (old_trans_id != journal->j_trans_id) { |
2716 | goto out_fail; | 2974 | retval = do_journal_end(&myth, p_s_sb, 1, 0); |
2717 | 2975 | } else { | |
2718 | PROC_INFO_INC( p_s_sb, journal.journal_relock_wcount ); | 2976 | retval = do_journal_end(&myth, p_s_sb, 1, COMMIT_NOW); |
2719 | goto relock ; | 2977 | } |
2720 | } | 2978 | |
2721 | /* we are the first writer, set trans_id */ | 2979 | if (retval) |
2722 | if (journal->j_trans_start_time == 0) { | 2980 | goto out_fail; |
2723 | journal->j_trans_start_time = get_seconds(); | 2981 | |
2724 | } | 2982 | PROC_INFO_INC(p_s_sb, journal.journal_relock_wcount); |
2725 | atomic_inc(&(journal->j_wcount)) ; | 2983 | goto relock; |
2726 | journal->j_len_alloc += nblocks ; | 2984 | } |
2727 | th->t_blocks_logged = 0 ; | 2985 | /* we are the first writer, set trans_id */ |
2728 | th->t_blocks_allocated = nblocks ; | 2986 | if (journal->j_trans_start_time == 0) { |
2729 | th->t_trans_id = journal->j_trans_id ; | 2987 | journal->j_trans_start_time = get_seconds(); |
2730 | unlock_journal(p_s_sb) ; | 2988 | } |
2731 | INIT_LIST_HEAD (&th->t_list); | 2989 | atomic_inc(&(journal->j_wcount)); |
2732 | get_fs_excl(); | 2990 | journal->j_len_alloc += nblocks; |
2733 | return 0 ; | 2991 | th->t_blocks_logged = 0; |
2734 | 2992 | th->t_blocks_allocated = nblocks; | |
2735 | out_fail: | 2993 | th->t_trans_id = journal->j_trans_id; |
2736 | memset (th, 0, sizeof (*th)); | 2994 | unlock_journal(p_s_sb); |
2737 | /* Re-set th->t_super, so we can properly keep track of how many | 2995 | INIT_LIST_HEAD(&th->t_list); |
2738 | * persistent transactions there are. We need to do this so if this | 2996 | get_fs_excl(); |
2739 | * call is part of a failed restart_transaction, we can free it later */ | 2997 | return 0; |
2740 | th->t_super = p_s_sb; | 2998 | |
2741 | return retval; | 2999 | out_fail: |
2742 | } | 3000 | memset(th, 0, sizeof(*th)); |
2743 | 3001 | /* Re-set th->t_super, so we can properly keep track of how many | |
2744 | struct reiserfs_transaction_handle * | 3002 | * persistent transactions there are. We need to do this so if this |
2745 | reiserfs_persistent_transaction(struct super_block *s, int nblocks) { | 3003 | * call is part of a failed restart_transaction, we can free it later */ |
2746 | int ret ; | 3004 | th->t_super = p_s_sb; |
2747 | struct reiserfs_transaction_handle *th ; | 3005 | return retval; |
2748 | 3006 | } | |
2749 | /* if we're nesting into an existing transaction. It will be | 3007 | |
2750 | ** persistent on its own | 3008 | struct reiserfs_transaction_handle *reiserfs_persistent_transaction(struct |
2751 | */ | 3009 | super_block |
2752 | if (reiserfs_transaction_running(s)) { | 3010 | *s, |
2753 | th = current->journal_info ; | 3011 | int nblocks) |
2754 | th->t_refcount++ ; | 3012 | { |
2755 | if (th->t_refcount < 2) { | 3013 | int ret; |
2756 | BUG() ; | 3014 | struct reiserfs_transaction_handle *th; |
2757 | } | 3015 | |
2758 | return th ; | 3016 | /* if we're nesting into an existing transaction. It will be |
2759 | } | 3017 | ** persistent on its own |
2760 | th = reiserfs_kmalloc(sizeof(struct reiserfs_transaction_handle), GFP_NOFS, s) ; | 3018 | */ |
2761 | if (!th) | 3019 | if (reiserfs_transaction_running(s)) { |
2762 | return NULL; | 3020 | th = current->journal_info; |
2763 | ret = journal_begin(th, s, nblocks) ; | 3021 | th->t_refcount++; |
2764 | if (ret) { | 3022 | if (th->t_refcount < 2) { |
2765 | reiserfs_kfree(th, sizeof(struct reiserfs_transaction_handle), s) ; | 3023 | BUG(); |
2766 | return NULL; | 3024 | } |
2767 | } | 3025 | return th; |
2768 | 3026 | } | |
2769 | SB_JOURNAL(s)->j_persistent_trans++; | 3027 | th = reiserfs_kmalloc(sizeof(struct reiserfs_transaction_handle), |
2770 | return th ; | 3028 | GFP_NOFS, s); |
2771 | } | 3029 | if (!th) |
2772 | 3030 | return NULL; | |
2773 | int | 3031 | ret = journal_begin(th, s, nblocks); |
2774 | reiserfs_end_persistent_transaction(struct reiserfs_transaction_handle *th) { | 3032 | if (ret) { |
2775 | struct super_block *s = th->t_super; | 3033 | reiserfs_kfree(th, sizeof(struct reiserfs_transaction_handle), |
2776 | int ret = 0; | 3034 | s); |
2777 | if (th->t_trans_id) | 3035 | return NULL; |
2778 | ret = journal_end(th, th->t_super, th->t_blocks_allocated); | 3036 | } |
2779 | else | 3037 | |
2780 | ret = -EIO; | 3038 | SB_JOURNAL(s)->j_persistent_trans++; |
2781 | if (th->t_refcount == 0) { | 3039 | return th; |
2782 | SB_JOURNAL(s)->j_persistent_trans--; | 3040 | } |
2783 | reiserfs_kfree(th, sizeof(struct reiserfs_transaction_handle), s) ; | 3041 | |
2784 | } | 3042 | int reiserfs_end_persistent_transaction(struct reiserfs_transaction_handle *th) |
2785 | return ret; | 3043 | { |
2786 | } | 3044 | struct super_block *s = th->t_super; |
2787 | 3045 | int ret = 0; | |
2788 | static int journal_join(struct reiserfs_transaction_handle *th, struct super_block *p_s_sb, unsigned long nblocks) { | 3046 | if (th->t_trans_id) |
2789 | struct reiserfs_transaction_handle *cur_th = current->journal_info; | 3047 | ret = journal_end(th, th->t_super, th->t_blocks_allocated); |
2790 | 3048 | else | |
2791 | /* this keeps do_journal_end from NULLing out the current->journal_info | 3049 | ret = -EIO; |
2792 | ** pointer | 3050 | if (th->t_refcount == 0) { |
2793 | */ | 3051 | SB_JOURNAL(s)->j_persistent_trans--; |
2794 | th->t_handle_save = cur_th ; | 3052 | reiserfs_kfree(th, sizeof(struct reiserfs_transaction_handle), |
2795 | if (cur_th && cur_th->t_refcount > 1) { | 3053 | s); |
2796 | BUG() ; | 3054 | } |
2797 | } | 3055 | return ret; |
2798 | return do_journal_begin_r(th, p_s_sb, nblocks, JBEGIN_JOIN) ; | 3056 | } |
2799 | } | 3057 | |
2800 | 3058 | static int journal_join(struct reiserfs_transaction_handle *th, | |
2801 | int journal_join_abort(struct reiserfs_transaction_handle *th, struct super_block *p_s_sb, unsigned long nblocks) { | 3059 | struct super_block *p_s_sb, unsigned long nblocks) |
2802 | struct reiserfs_transaction_handle *cur_th = current->journal_info; | 3060 | { |
2803 | 3061 | struct reiserfs_transaction_handle *cur_th = current->journal_info; | |
2804 | /* this keeps do_journal_end from NULLing out the current->journal_info | 3062 | |
2805 | ** pointer | 3063 | /* this keeps do_journal_end from NULLing out the current->journal_info |
2806 | */ | 3064 | ** pointer |
2807 | th->t_handle_save = cur_th ; | 3065 | */ |
2808 | if (cur_th && cur_th->t_refcount > 1) { | 3066 | th->t_handle_save = cur_th; |
2809 | BUG() ; | 3067 | if (cur_th && cur_th->t_refcount > 1) { |
2810 | } | 3068 | BUG(); |
2811 | return do_journal_begin_r(th, p_s_sb, nblocks, JBEGIN_ABORT) ; | 3069 | } |
2812 | } | 3070 | return do_journal_begin_r(th, p_s_sb, nblocks, JBEGIN_JOIN); |
2813 | 3071 | } | |
2814 | int journal_begin(struct reiserfs_transaction_handle *th, struct super_block * p_s_sb, unsigned long nblocks) { | 3072 | |
2815 | struct reiserfs_transaction_handle *cur_th = current->journal_info ; | 3073 | int journal_join_abort(struct reiserfs_transaction_handle *th, |
2816 | int ret ; | 3074 | struct super_block *p_s_sb, unsigned long nblocks) |
2817 | 3075 | { | |
2818 | th->t_handle_save = NULL ; | 3076 | struct reiserfs_transaction_handle *cur_th = current->journal_info; |
2819 | if (cur_th) { | 3077 | |
2820 | /* we are nesting into the current transaction */ | 3078 | /* this keeps do_journal_end from NULLing out the current->journal_info |
2821 | if (cur_th->t_super == p_s_sb) { | 3079 | ** pointer |
2822 | BUG_ON (!cur_th->t_refcount); | 3080 | */ |
2823 | cur_th->t_refcount++ ; | 3081 | th->t_handle_save = cur_th; |
2824 | memcpy(th, cur_th, sizeof(*th)); | 3082 | if (cur_th && cur_th->t_refcount > 1) { |
2825 | if (th->t_refcount <= 1) | 3083 | BUG(); |
2826 | reiserfs_warning (p_s_sb, "BAD: refcount <= 1, but journal_info != 0"); | 3084 | } |
2827 | return 0; | 3085 | return do_journal_begin_r(th, p_s_sb, nblocks, JBEGIN_ABORT); |
3086 | } | ||
3087 | |||
3088 | int journal_begin(struct reiserfs_transaction_handle *th, | ||
3089 | struct super_block *p_s_sb, unsigned long nblocks) | ||
3090 | { | ||
3091 | struct reiserfs_transaction_handle *cur_th = current->journal_info; | ||
3092 | int ret; | ||
3093 | |||
3094 | th->t_handle_save = NULL; | ||
3095 | if (cur_th) { | ||
3096 | /* we are nesting into the current transaction */ | ||
3097 | if (cur_th->t_super == p_s_sb) { | ||
3098 | BUG_ON(!cur_th->t_refcount); | ||
3099 | cur_th->t_refcount++; | ||
3100 | memcpy(th, cur_th, sizeof(*th)); | ||
3101 | if (th->t_refcount <= 1) | ||
3102 | reiserfs_warning(p_s_sb, | ||
3103 | "BAD: refcount <= 1, but journal_info != 0"); | ||
3104 | return 0; | ||
3105 | } else { | ||
3106 | /* we've ended up with a handle from a different filesystem. | ||
3107 | ** save it and restore on journal_end. This should never | ||
3108 | ** really happen... | ||
3109 | */ | ||
3110 | reiserfs_warning(p_s_sb, | ||
3111 | "clm-2100: nesting info a different FS"); | ||
3112 | th->t_handle_save = current->journal_info; | ||
3113 | current->journal_info = th; | ||
3114 | } | ||
2828 | } else { | 3115 | } else { |
2829 | /* we've ended up with a handle from a different filesystem. | 3116 | current->journal_info = th; |
2830 | ** save it and restore on journal_end. This should never | 3117 | } |
2831 | ** really happen... | 3118 | ret = do_journal_begin_r(th, p_s_sb, nblocks, JBEGIN_REG); |
2832 | */ | 3119 | if (current->journal_info != th) |
2833 | reiserfs_warning(p_s_sb, "clm-2100: nesting info a different FS") ; | 3120 | BUG(); |
2834 | th->t_handle_save = current->journal_info ; | ||
2835 | current->journal_info = th; | ||
2836 | } | ||
2837 | } else { | ||
2838 | current->journal_info = th; | ||
2839 | } | ||
2840 | ret = do_journal_begin_r(th, p_s_sb, nblocks, JBEGIN_REG) ; | ||
2841 | if (current->journal_info != th) | ||
2842 | BUG() ; | ||
2843 | 3121 | ||
2844 | /* I guess this boils down to being the reciprocal of clm-2100 above. | 3122 | /* I guess this boils down to being the reciprocal of clm-2100 above. |
2845 | * If do_journal_begin_r fails, we need to put it back, since journal_end | 3123 | * If do_journal_begin_r fails, we need to put it back, since journal_end |
2846 | * won't be called to do it. */ | 3124 | * won't be called to do it. */ |
2847 | if (ret) | 3125 | if (ret) |
2848 | current->journal_info = th->t_handle_save; | 3126 | current->journal_info = th->t_handle_save; |
2849 | else | 3127 | else |
2850 | BUG_ON (!th->t_refcount); | 3128 | BUG_ON(!th->t_refcount); |
2851 | 3129 | ||
2852 | return ret ; | 3130 | return ret; |
2853 | } | 3131 | } |
2854 | 3132 | ||
2855 | /* | 3133 | /* |
@@ -2861,129 +3139,140 @@ int journal_begin(struct reiserfs_transaction_handle *th, struct super_block * | |||
2861 | ** | 3139 | ** |
2862 | ** if j_len, is bigger than j_len_alloc, it pushes j_len_alloc to 10 + j_len. | 3140 | ** if j_len, is bigger than j_len_alloc, it pushes j_len_alloc to 10 + j_len. |
2863 | */ | 3141 | */ |
2864 | int journal_mark_dirty(struct reiserfs_transaction_handle *th, struct super_block *p_s_sb, struct buffer_head *bh) { | 3142 | int journal_mark_dirty(struct reiserfs_transaction_handle *th, |
2865 | struct reiserfs_journal *journal = SB_JOURNAL (p_s_sb); | 3143 | struct super_block *p_s_sb, struct buffer_head *bh) |
2866 | struct reiserfs_journal_cnode *cn = NULL; | 3144 | { |
2867 | int count_already_incd = 0 ; | 3145 | struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb); |
2868 | int prepared = 0 ; | 3146 | struct reiserfs_journal_cnode *cn = NULL; |
2869 | BUG_ON (!th->t_trans_id); | 3147 | int count_already_incd = 0; |
2870 | 3148 | int prepared = 0; | |
2871 | PROC_INFO_INC( p_s_sb, journal.mark_dirty ); | 3149 | BUG_ON(!th->t_trans_id); |
2872 | if (th->t_trans_id != journal->j_trans_id) { | 3150 | |
2873 | reiserfs_panic(th->t_super, "journal-1577: handle trans id %ld != current trans id %ld\n", | 3151 | PROC_INFO_INC(p_s_sb, journal.mark_dirty); |
2874 | th->t_trans_id, journal->j_trans_id); | 3152 | if (th->t_trans_id != journal->j_trans_id) { |
2875 | } | 3153 | reiserfs_panic(th->t_super, |
2876 | 3154 | "journal-1577: handle trans id %ld != current trans id %ld\n", | |
2877 | p_s_sb->s_dirt = 1; | 3155 | th->t_trans_id, journal->j_trans_id); |
2878 | 3156 | } | |
2879 | prepared = test_clear_buffer_journal_prepared (bh); | 3157 | |
2880 | clear_buffer_journal_restore_dirty (bh); | 3158 | p_s_sb->s_dirt = 1; |
2881 | /* already in this transaction, we are done */ | 3159 | |
2882 | if (buffer_journaled(bh)) { | 3160 | prepared = test_clear_buffer_journal_prepared(bh); |
2883 | PROC_INFO_INC( p_s_sb, journal.mark_dirty_already ); | 3161 | clear_buffer_journal_restore_dirty(bh); |
2884 | return 0 ; | 3162 | /* already in this transaction, we are done */ |
2885 | } | 3163 | if (buffer_journaled(bh)) { |
2886 | 3164 | PROC_INFO_INC(p_s_sb, journal.mark_dirty_already); | |
2887 | /* this must be turned into a panic instead of a warning. We can't allow | 3165 | return 0; |
2888 | ** a dirty or journal_dirty or locked buffer to be logged, as some changes | 3166 | } |
2889 | ** could get to disk too early. NOT GOOD. | 3167 | |
2890 | */ | 3168 | /* this must be turned into a panic instead of a warning. We can't allow |
2891 | if (!prepared || buffer_dirty(bh)) { | 3169 | ** a dirty or journal_dirty or locked buffer to be logged, as some changes |
2892 | reiserfs_warning (p_s_sb, "journal-1777: buffer %llu bad state " | 3170 | ** could get to disk too early. NOT GOOD. |
2893 | "%cPREPARED %cLOCKED %cDIRTY %cJDIRTY_WAIT", | 3171 | */ |
2894 | (unsigned long long)bh->b_blocknr, prepared ? ' ' : '!', | 3172 | if (!prepared || buffer_dirty(bh)) { |
2895 | buffer_locked(bh) ? ' ' : '!', | 3173 | reiserfs_warning(p_s_sb, "journal-1777: buffer %llu bad state " |
2896 | buffer_dirty(bh) ? ' ' : '!', | 3174 | "%cPREPARED %cLOCKED %cDIRTY %cJDIRTY_WAIT", |
2897 | buffer_journal_dirty(bh) ? ' ' : '!') ; | 3175 | (unsigned long long)bh->b_blocknr, |
2898 | } | 3176 | prepared ? ' ' : '!', |
2899 | 3177 | buffer_locked(bh) ? ' ' : '!', | |
2900 | if (atomic_read(&(journal->j_wcount)) <= 0) { | 3178 | buffer_dirty(bh) ? ' ' : '!', |
2901 | reiserfs_warning (p_s_sb, "journal-1409: journal_mark_dirty returning because j_wcount was %d", atomic_read(&(journal->j_wcount))) ; | 3179 | buffer_journal_dirty(bh) ? ' ' : '!'); |
2902 | return 1 ; | 3180 | } |
2903 | } | 3181 | |
2904 | /* this error means I've screwed up, and we've overflowed the transaction. | 3182 | if (atomic_read(&(journal->j_wcount)) <= 0) { |
2905 | ** Nothing can be done here, except make the FS readonly or panic. | 3183 | reiserfs_warning(p_s_sb, |
2906 | */ | 3184 | "journal-1409: journal_mark_dirty returning because j_wcount was %d", |
2907 | if (journal->j_len >= journal->j_trans_max) { | 3185 | atomic_read(&(journal->j_wcount))); |
2908 | reiserfs_panic(th->t_super, "journal-1413: journal_mark_dirty: j_len (%lu) is too big\n", journal->j_len) ; | 3186 | return 1; |
2909 | } | 3187 | } |
2910 | 3188 | /* this error means I've screwed up, and we've overflowed the transaction. | |
2911 | if (buffer_journal_dirty(bh)) { | 3189 | ** Nothing can be done here, except make the FS readonly or panic. |
2912 | count_already_incd = 1 ; | 3190 | */ |
2913 | PROC_INFO_INC( p_s_sb, journal.mark_dirty_notjournal ); | 3191 | if (journal->j_len >= journal->j_trans_max) { |
2914 | clear_buffer_journal_dirty (bh); | 3192 | reiserfs_panic(th->t_super, |
2915 | } | 3193 | "journal-1413: journal_mark_dirty: j_len (%lu) is too big\n", |
2916 | 3194 | journal->j_len); | |
2917 | if (journal->j_len > journal->j_len_alloc) { | 3195 | } |
2918 | journal->j_len_alloc = journal->j_len + JOURNAL_PER_BALANCE_CNT ; | 3196 | |
2919 | } | 3197 | if (buffer_journal_dirty(bh)) { |
2920 | 3198 | count_already_incd = 1; | |
2921 | set_buffer_journaled (bh); | 3199 | PROC_INFO_INC(p_s_sb, journal.mark_dirty_notjournal); |
2922 | 3200 | clear_buffer_journal_dirty(bh); | |
2923 | /* now put this guy on the end */ | 3201 | } |
2924 | if (!cn) { | 3202 | |
2925 | cn = get_cnode(p_s_sb) ; | 3203 | if (journal->j_len > journal->j_len_alloc) { |
2926 | if (!cn) { | 3204 | journal->j_len_alloc = journal->j_len + JOURNAL_PER_BALANCE_CNT; |
2927 | reiserfs_panic(p_s_sb, "get_cnode failed!\n"); | 3205 | } |
2928 | } | 3206 | |
2929 | 3207 | set_buffer_journaled(bh); | |
2930 | if (th->t_blocks_logged == th->t_blocks_allocated) { | 3208 | |
2931 | th->t_blocks_allocated += JOURNAL_PER_BALANCE_CNT ; | 3209 | /* now put this guy on the end */ |
2932 | journal->j_len_alloc += JOURNAL_PER_BALANCE_CNT ; | 3210 | if (!cn) { |
2933 | } | 3211 | cn = get_cnode(p_s_sb); |
2934 | th->t_blocks_logged++ ; | 3212 | if (!cn) { |
2935 | journal->j_len++ ; | 3213 | reiserfs_panic(p_s_sb, "get_cnode failed!\n"); |
2936 | 3214 | } | |
2937 | cn->bh = bh ; | 3215 | |
2938 | cn->blocknr = bh->b_blocknr ; | 3216 | if (th->t_blocks_logged == th->t_blocks_allocated) { |
2939 | cn->sb = p_s_sb; | 3217 | th->t_blocks_allocated += JOURNAL_PER_BALANCE_CNT; |
2940 | cn->jlist = NULL ; | 3218 | journal->j_len_alloc += JOURNAL_PER_BALANCE_CNT; |
2941 | insert_journal_hash(journal->j_hash_table, cn) ; | 3219 | } |
2942 | if (!count_already_incd) { | 3220 | th->t_blocks_logged++; |
2943 | get_bh(bh) ; | 3221 | journal->j_len++; |
2944 | } | 3222 | |
2945 | } | 3223 | cn->bh = bh; |
2946 | cn->next = NULL ; | 3224 | cn->blocknr = bh->b_blocknr; |
2947 | cn->prev = journal->j_last ; | 3225 | cn->sb = p_s_sb; |
2948 | cn->bh = bh ; | 3226 | cn->jlist = NULL; |
2949 | if (journal->j_last) { | 3227 | insert_journal_hash(journal->j_hash_table, cn); |
2950 | journal->j_last->next = cn ; | 3228 | if (!count_already_incd) { |
2951 | journal->j_last = cn ; | 3229 | get_bh(bh); |
2952 | } else { | 3230 | } |
2953 | journal->j_first = cn ; | 3231 | } |
2954 | journal->j_last = cn ; | 3232 | cn->next = NULL; |
2955 | } | 3233 | cn->prev = journal->j_last; |
2956 | return 0 ; | 3234 | cn->bh = bh; |
2957 | } | 3235 | if (journal->j_last) { |
2958 | 3236 | journal->j_last->next = cn; | |
2959 | int journal_end(struct reiserfs_transaction_handle *th, struct super_block *p_s_sb, unsigned long nblocks) { | 3237 | journal->j_last = cn; |
2960 | if (!current->journal_info && th->t_refcount > 1) | 3238 | } else { |
2961 | reiserfs_warning (p_s_sb, "REISER-NESTING: th NULL, refcount %d", | 3239 | journal->j_first = cn; |
2962 | th->t_refcount); | 3240 | journal->j_last = cn; |
2963 | 3241 | } | |
2964 | if (!th->t_trans_id) { | 3242 | return 0; |
2965 | WARN_ON (1); | 3243 | } |
2966 | return -EIO; | 3244 | |
2967 | } | 3245 | int journal_end(struct reiserfs_transaction_handle *th, |
2968 | 3246 | struct super_block *p_s_sb, unsigned long nblocks) | |
2969 | th->t_refcount--; | 3247 | { |
2970 | if (th->t_refcount > 0) { | 3248 | if (!current->journal_info && th->t_refcount > 1) |
2971 | struct reiserfs_transaction_handle *cur_th = current->journal_info ; | 3249 | reiserfs_warning(p_s_sb, "REISER-NESTING: th NULL, refcount %d", |
2972 | 3250 | th->t_refcount); | |
2973 | /* we aren't allowed to close a nested transaction on a different | 3251 | |
2974 | ** filesystem from the one in the task struct | 3252 | if (!th->t_trans_id) { |
2975 | */ | 3253 | WARN_ON(1); |
2976 | if (cur_th->t_super != th->t_super) | 3254 | return -EIO; |
2977 | BUG() ; | 3255 | } |
2978 | 3256 | ||
2979 | if (th != cur_th) { | 3257 | th->t_refcount--; |
2980 | memcpy(current->journal_info, th, sizeof(*th)); | 3258 | if (th->t_refcount > 0) { |
2981 | th->t_trans_id = 0; | 3259 | struct reiserfs_transaction_handle *cur_th = |
2982 | } | 3260 | current->journal_info; |
2983 | return 0; | 3261 | |
2984 | } else { | 3262 | /* we aren't allowed to close a nested transaction on a different |
2985 | return do_journal_end(th, p_s_sb, nblocks, 0) ; | 3263 | ** filesystem from the one in the task struct |
2986 | } | 3264 | */ |
3265 | if (cur_th->t_super != th->t_super) | ||
3266 | BUG(); | ||
3267 | |||
3268 | if (th != cur_th) { | ||
3269 | memcpy(current->journal_info, th, sizeof(*th)); | ||
3270 | th->t_trans_id = 0; | ||
3271 | } | ||
3272 | return 0; | ||
3273 | } else { | ||
3274 | return do_journal_end(th, p_s_sb, nblocks, 0); | ||
3275 | } | ||
2987 | } | 3276 | } |
2988 | 3277 | ||
2989 | /* removes from the current transaction, relsing and descrementing any counters. | 3278 | /* removes from the current transaction, relsing and descrementing any counters. |
@@ -2993,47 +3282,51 @@ int journal_end(struct reiserfs_transaction_handle *th, struct super_block *p_s_ | |||
2993 | ** | 3282 | ** |
2994 | ** returns 1 if it cleaned and relsed the buffer. 0 otherwise | 3283 | ** returns 1 if it cleaned and relsed the buffer. 0 otherwise |
2995 | */ | 3284 | */ |
2996 | static int remove_from_transaction(struct super_block *p_s_sb, b_blocknr_t blocknr, int already_cleaned) { | 3285 | static int remove_from_transaction(struct super_block *p_s_sb, |
2997 | struct buffer_head *bh ; | 3286 | b_blocknr_t blocknr, int already_cleaned) |
2998 | struct reiserfs_journal_cnode *cn ; | 3287 | { |
2999 | struct reiserfs_journal *journal = SB_JOURNAL (p_s_sb); | 3288 | struct buffer_head *bh; |
3000 | int ret = 0; | 3289 | struct reiserfs_journal_cnode *cn; |
3001 | 3290 | struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb); | |
3002 | cn = get_journal_hash_dev(p_s_sb, journal->j_hash_table, blocknr) ; | 3291 | int ret = 0; |
3003 | if (!cn || !cn->bh) { | 3292 | |
3004 | return ret ; | 3293 | cn = get_journal_hash_dev(p_s_sb, journal->j_hash_table, blocknr); |
3005 | } | 3294 | if (!cn || !cn->bh) { |
3006 | bh = cn->bh ; | 3295 | return ret; |
3007 | if (cn->prev) { | 3296 | } |
3008 | cn->prev->next = cn->next ; | 3297 | bh = cn->bh; |
3009 | } | 3298 | if (cn->prev) { |
3010 | if (cn->next) { | 3299 | cn->prev->next = cn->next; |
3011 | cn->next->prev = cn->prev ; | 3300 | } |
3012 | } | 3301 | if (cn->next) { |
3013 | if (cn == journal->j_first) { | 3302 | cn->next->prev = cn->prev; |
3014 | journal->j_first = cn->next ; | 3303 | } |
3015 | } | 3304 | if (cn == journal->j_first) { |
3016 | if (cn == journal->j_last) { | 3305 | journal->j_first = cn->next; |
3017 | journal->j_last = cn->prev ; | 3306 | } |
3018 | } | 3307 | if (cn == journal->j_last) { |
3019 | if (bh) | 3308 | journal->j_last = cn->prev; |
3020 | remove_journal_hash(p_s_sb, journal->j_hash_table, NULL, bh->b_blocknr, 0) ; | 3309 | } |
3021 | clear_buffer_journaled (bh); /* don't log this one */ | 3310 | if (bh) |
3022 | 3311 | remove_journal_hash(p_s_sb, journal->j_hash_table, NULL, | |
3023 | if (!already_cleaned) { | 3312 | bh->b_blocknr, 0); |
3024 | clear_buffer_journal_dirty (bh); | 3313 | clear_buffer_journaled(bh); /* don't log this one */ |
3025 | clear_buffer_dirty(bh); | 3314 | |
3026 | clear_buffer_journal_test (bh); | 3315 | if (!already_cleaned) { |
3027 | put_bh(bh) ; | 3316 | clear_buffer_journal_dirty(bh); |
3028 | if (atomic_read(&(bh->b_count)) < 0) { | 3317 | clear_buffer_dirty(bh); |
3029 | reiserfs_warning (p_s_sb, "journal-1752: remove from trans, b_count < 0"); | 3318 | clear_buffer_journal_test(bh); |
3030 | } | 3319 | put_bh(bh); |
3031 | ret = 1 ; | 3320 | if (atomic_read(&(bh->b_count)) < 0) { |
3032 | } | 3321 | reiserfs_warning(p_s_sb, |
3033 | journal->j_len-- ; | 3322 | "journal-1752: remove from trans, b_count < 0"); |
3034 | journal->j_len_alloc-- ; | 3323 | } |
3035 | free_cnode(p_s_sb, cn) ; | 3324 | ret = 1; |
3036 | return ret ; | 3325 | } |
3326 | journal->j_len--; | ||
3327 | journal->j_len_alloc--; | ||
3328 | free_cnode(p_s_sb, cn); | ||
3329 | return ret; | ||
3037 | } | 3330 | } |
3038 | 3331 | ||
3039 | /* | 3332 | /* |
@@ -3046,120 +3339,129 @@ static int remove_from_transaction(struct super_block *p_s_sb, b_blocknr_t block | |||
3046 | ** blocks for a given transaction on disk | 3339 | ** blocks for a given transaction on disk |
3047 | ** | 3340 | ** |
3048 | */ | 3341 | */ |
3049 | static int can_dirty(struct reiserfs_journal_cnode *cn) { | 3342 | static int can_dirty(struct reiserfs_journal_cnode *cn) |
3050 | struct super_block *sb = cn->sb; | 3343 | { |
3051 | b_blocknr_t blocknr = cn->blocknr ; | 3344 | struct super_block *sb = cn->sb; |
3052 | struct reiserfs_journal_cnode *cur = cn->hprev ; | 3345 | b_blocknr_t blocknr = cn->blocknr; |
3053 | int can_dirty = 1 ; | 3346 | struct reiserfs_journal_cnode *cur = cn->hprev; |
3054 | 3347 | int can_dirty = 1; | |
3055 | /* first test hprev. These are all newer than cn, so any node here | 3348 | |
3056 | ** with the same block number and dev means this node can't be sent | 3349 | /* first test hprev. These are all newer than cn, so any node here |
3057 | ** to disk right now. | 3350 | ** with the same block number and dev means this node can't be sent |
3058 | */ | 3351 | ** to disk right now. |
3059 | while(cur && can_dirty) { | 3352 | */ |
3060 | if (cur->jlist && cur->bh && cur->blocknr && cur->sb == sb && | 3353 | while (cur && can_dirty) { |
3061 | cur->blocknr == blocknr) { | 3354 | if (cur->jlist && cur->bh && cur->blocknr && cur->sb == sb && |
3062 | can_dirty = 0 ; | 3355 | cur->blocknr == blocknr) { |
3063 | } | 3356 | can_dirty = 0; |
3064 | cur = cur->hprev ; | 3357 | } |
3065 | } | 3358 | cur = cur->hprev; |
3066 | /* then test hnext. These are all older than cn. As long as they | 3359 | } |
3067 | ** are committed to the log, it is safe to write cn to disk | 3360 | /* then test hnext. These are all older than cn. As long as they |
3068 | */ | 3361 | ** are committed to the log, it is safe to write cn to disk |
3069 | cur = cn->hnext ; | 3362 | */ |
3070 | while(cur && can_dirty) { | 3363 | cur = cn->hnext; |
3071 | if (cur->jlist && cur->jlist->j_len > 0 && | 3364 | while (cur && can_dirty) { |
3072 | atomic_read(&(cur->jlist->j_commit_left)) > 0 && cur->bh && | 3365 | if (cur->jlist && cur->jlist->j_len > 0 && |
3073 | cur->blocknr && cur->sb == sb && cur->blocknr == blocknr) { | 3366 | atomic_read(&(cur->jlist->j_commit_left)) > 0 && cur->bh && |
3074 | can_dirty = 0 ; | 3367 | cur->blocknr && cur->sb == sb && cur->blocknr == blocknr) { |
3075 | } | 3368 | can_dirty = 0; |
3076 | cur = cur->hnext ; | 3369 | } |
3077 | } | 3370 | cur = cur->hnext; |
3078 | return can_dirty ; | 3371 | } |
3372 | return can_dirty; | ||
3079 | } | 3373 | } |
3080 | 3374 | ||
3081 | /* syncs the commit blocks, but does not force the real buffers to disk | 3375 | /* syncs the commit blocks, but does not force the real buffers to disk |
3082 | ** will wait until the current transaction is done/commited before returning | 3376 | ** will wait until the current transaction is done/commited before returning |
3083 | */ | 3377 | */ |
3084 | int journal_end_sync(struct reiserfs_transaction_handle *th, struct super_block *p_s_sb, unsigned long nblocks) { | 3378 | int journal_end_sync(struct reiserfs_transaction_handle *th, |
3085 | struct reiserfs_journal *journal = SB_JOURNAL (p_s_sb); | 3379 | struct super_block *p_s_sb, unsigned long nblocks) |
3380 | { | ||
3381 | struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb); | ||
3086 | 3382 | ||
3087 | BUG_ON (!th->t_trans_id); | 3383 | BUG_ON(!th->t_trans_id); |
3088 | /* you can sync while nested, very, very bad */ | 3384 | /* you can sync while nested, very, very bad */ |
3089 | if (th->t_refcount > 1) { | 3385 | if (th->t_refcount > 1) { |
3090 | BUG() ; | 3386 | BUG(); |
3091 | } | 3387 | } |
3092 | if (journal->j_len == 0) { | 3388 | if (journal->j_len == 0) { |
3093 | reiserfs_prepare_for_journal(p_s_sb, SB_BUFFER_WITH_SB(p_s_sb), 1) ; | 3389 | reiserfs_prepare_for_journal(p_s_sb, SB_BUFFER_WITH_SB(p_s_sb), |
3094 | journal_mark_dirty(th, p_s_sb, SB_BUFFER_WITH_SB(p_s_sb)) ; | 3390 | 1); |
3095 | } | 3391 | journal_mark_dirty(th, p_s_sb, SB_BUFFER_WITH_SB(p_s_sb)); |
3096 | return do_journal_end(th, p_s_sb, nblocks, COMMIT_NOW | WAIT) ; | 3392 | } |
3393 | return do_journal_end(th, p_s_sb, nblocks, COMMIT_NOW | WAIT); | ||
3097 | } | 3394 | } |
3098 | 3395 | ||
3099 | /* | 3396 | /* |
3100 | ** writeback the pending async commits to disk | 3397 | ** writeback the pending async commits to disk |
3101 | */ | 3398 | */ |
3102 | static void flush_async_commits(void *p) { | 3399 | static void flush_async_commits(void *p) |
3103 | struct super_block *p_s_sb = p; | 3400 | { |
3104 | struct reiserfs_journal *journal = SB_JOURNAL (p_s_sb); | 3401 | struct super_block *p_s_sb = p; |
3105 | struct reiserfs_journal_list *jl; | 3402 | struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb); |
3106 | struct list_head *entry; | 3403 | struct reiserfs_journal_list *jl; |
3107 | 3404 | struct list_head *entry; | |
3108 | lock_kernel(); | 3405 | |
3109 | if (!list_empty(&journal->j_journal_list)) { | 3406 | lock_kernel(); |
3110 | /* last entry is the youngest, commit it and you get everything */ | 3407 | if (!list_empty(&journal->j_journal_list)) { |
3111 | entry = journal->j_journal_list.prev; | 3408 | /* last entry is the youngest, commit it and you get everything */ |
3112 | jl = JOURNAL_LIST_ENTRY(entry); | 3409 | entry = journal->j_journal_list.prev; |
3113 | flush_commit_list(p_s_sb, jl, 1); | 3410 | jl = JOURNAL_LIST_ENTRY(entry); |
3114 | } | 3411 | flush_commit_list(p_s_sb, jl, 1); |
3115 | unlock_kernel(); | 3412 | } |
3116 | /* | 3413 | unlock_kernel(); |
3117 | * this is a little racey, but there's no harm in missing | 3414 | /* |
3118 | * the filemap_fdata_write | 3415 | * this is a little racey, but there's no harm in missing |
3119 | */ | 3416 | * the filemap_fdata_write |
3120 | if (!atomic_read(&journal->j_async_throttle) && !reiserfs_is_journal_aborted (journal)) { | 3417 | */ |
3121 | atomic_inc(&journal->j_async_throttle); | 3418 | if (!atomic_read(&journal->j_async_throttle) |
3122 | filemap_fdatawrite(p_s_sb->s_bdev->bd_inode->i_mapping); | 3419 | && !reiserfs_is_journal_aborted(journal)) { |
3123 | atomic_dec(&journal->j_async_throttle); | 3420 | atomic_inc(&journal->j_async_throttle); |
3124 | } | 3421 | filemap_fdatawrite(p_s_sb->s_bdev->bd_inode->i_mapping); |
3422 | atomic_dec(&journal->j_async_throttle); | ||
3423 | } | ||
3125 | } | 3424 | } |
3126 | 3425 | ||
3127 | /* | 3426 | /* |
3128 | ** flushes any old transactions to disk | 3427 | ** flushes any old transactions to disk |
3129 | ** ends the current transaction if it is too old | 3428 | ** ends the current transaction if it is too old |
3130 | */ | 3429 | */ |
3131 | int reiserfs_flush_old_commits(struct super_block *p_s_sb) { | 3430 | int reiserfs_flush_old_commits(struct super_block *p_s_sb) |
3132 | time_t now ; | 3431 | { |
3133 | struct reiserfs_transaction_handle th ; | 3432 | time_t now; |
3134 | struct reiserfs_journal *journal = SB_JOURNAL (p_s_sb); | 3433 | struct reiserfs_transaction_handle th; |
3135 | 3434 | struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb); | |
3136 | now = get_seconds(); | 3435 | |
3137 | /* safety check so we don't flush while we are replaying the log during | 3436 | now = get_seconds(); |
3138 | * mount | 3437 | /* safety check so we don't flush while we are replaying the log during |
3139 | */ | 3438 | * mount |
3140 | if (list_empty(&journal->j_journal_list)) { | 3439 | */ |
3141 | return 0 ; | 3440 | if (list_empty(&journal->j_journal_list)) { |
3142 | } | 3441 | return 0; |
3143 | 3442 | } | |
3144 | /* check the current transaction. If there are no writers, and it is | 3443 | |
3145 | * too old, finish it, and force the commit blocks to disk | 3444 | /* check the current transaction. If there are no writers, and it is |
3146 | */ | 3445 | * too old, finish it, and force the commit blocks to disk |
3147 | if (atomic_read(&journal->j_wcount) <= 0 && | 3446 | */ |
3148 | journal->j_trans_start_time > 0 && | 3447 | if (atomic_read(&journal->j_wcount) <= 0 && |
3149 | journal->j_len > 0 && | 3448 | journal->j_trans_start_time > 0 && |
3150 | (now - journal->j_trans_start_time) > journal->j_max_trans_age) | 3449 | journal->j_len > 0 && |
3151 | { | 3450 | (now - journal->j_trans_start_time) > journal->j_max_trans_age) { |
3152 | if (!journal_join(&th, p_s_sb, 1)) { | 3451 | if (!journal_join(&th, p_s_sb, 1)) { |
3153 | reiserfs_prepare_for_journal(p_s_sb, SB_BUFFER_WITH_SB(p_s_sb), 1) ; | 3452 | reiserfs_prepare_for_journal(p_s_sb, |
3154 | journal_mark_dirty(&th, p_s_sb, SB_BUFFER_WITH_SB(p_s_sb)) ; | 3453 | SB_BUFFER_WITH_SB(p_s_sb), |
3155 | 3454 | 1); | |
3156 | /* we're only being called from kreiserfsd, it makes no sense to do | 3455 | journal_mark_dirty(&th, p_s_sb, |
3157 | ** an async commit so that kreiserfsd can do it later | 3456 | SB_BUFFER_WITH_SB(p_s_sb)); |
3158 | */ | 3457 | |
3159 | do_journal_end(&th, p_s_sb,1, COMMIT_NOW | WAIT) ; | 3458 | /* we're only being called from kreiserfsd, it makes no sense to do |
3160 | } | 3459 | ** an async commit so that kreiserfsd can do it later |
3161 | } | 3460 | */ |
3162 | return p_s_sb->s_dirt; | 3461 | do_journal_end(&th, p_s_sb, 1, COMMIT_NOW | WAIT); |
3462 | } | ||
3463 | } | ||
3464 | return p_s_sb->s_dirt; | ||
3163 | } | 3465 | } |
3164 | 3466 | ||
3165 | /* | 3467 | /* |
@@ -3173,101 +3475,108 @@ int reiserfs_flush_old_commits(struct super_block *p_s_sb) { | |||
3173 | ** | 3475 | ** |
3174 | ** Note, we can't allow the journal_end to proceed while there are still writers in the log. | 3476 | ** Note, we can't allow the journal_end to proceed while there are still writers in the log. |
3175 | */ | 3477 | */ |
3176 | static int check_journal_end(struct reiserfs_transaction_handle *th, struct super_block * p_s_sb, | 3478 | static int check_journal_end(struct reiserfs_transaction_handle *th, |
3177 | unsigned long nblocks, int flags) { | 3479 | struct super_block *p_s_sb, unsigned long nblocks, |
3178 | 3480 | int flags) | |
3179 | time_t now ; | 3481 | { |
3180 | int flush = flags & FLUSH_ALL ; | 3482 | |
3181 | int commit_now = flags & COMMIT_NOW ; | 3483 | time_t now; |
3182 | int wait_on_commit = flags & WAIT ; | 3484 | int flush = flags & FLUSH_ALL; |
3183 | struct reiserfs_journal_list *jl; | 3485 | int commit_now = flags & COMMIT_NOW; |
3184 | struct reiserfs_journal *journal = SB_JOURNAL (p_s_sb); | 3486 | int wait_on_commit = flags & WAIT; |
3185 | 3487 | struct reiserfs_journal_list *jl; | |
3186 | BUG_ON (!th->t_trans_id); | 3488 | struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb); |
3187 | 3489 | ||
3188 | if (th->t_trans_id != journal->j_trans_id) { | 3490 | BUG_ON(!th->t_trans_id); |
3189 | reiserfs_panic(th->t_super, "journal-1577: handle trans id %ld != current trans id %ld\n", | 3491 | |
3190 | th->t_trans_id, journal->j_trans_id); | 3492 | if (th->t_trans_id != journal->j_trans_id) { |
3191 | } | 3493 | reiserfs_panic(th->t_super, |
3192 | 3494 | "journal-1577: handle trans id %ld != current trans id %ld\n", | |
3193 | journal->j_len_alloc -= (th->t_blocks_allocated - th->t_blocks_logged) ; | 3495 | th->t_trans_id, journal->j_trans_id); |
3194 | if (atomic_read(&(journal->j_wcount)) > 0) { /* <= 0 is allowed. unmounting might not call begin */ | 3496 | } |
3195 | atomic_dec(&(journal->j_wcount)) ; | 3497 | |
3196 | } | 3498 | journal->j_len_alloc -= (th->t_blocks_allocated - th->t_blocks_logged); |
3197 | 3499 | if (atomic_read(&(journal->j_wcount)) > 0) { /* <= 0 is allowed. unmounting might not call begin */ | |
3198 | /* BUG, deal with case where j_len is 0, but people previously freed blocks need to be released | 3500 | atomic_dec(&(journal->j_wcount)); |
3199 | ** will be dealt with by next transaction that actually writes something, but should be taken | 3501 | } |
3200 | ** care of in this trans | 3502 | |
3201 | */ | 3503 | /* BUG, deal with case where j_len is 0, but people previously freed blocks need to be released |
3202 | if (journal->j_len == 0) { | 3504 | ** will be dealt with by next transaction that actually writes something, but should be taken |
3203 | BUG(); | 3505 | ** care of in this trans |
3204 | } | 3506 | */ |
3205 | /* if wcount > 0, and we are called to with flush or commit_now, | 3507 | if (journal->j_len == 0) { |
3206 | ** we wait on j_join_wait. We will wake up when the last writer has | 3508 | BUG(); |
3207 | ** finished the transaction, and started it on its way to the disk. | 3509 | } |
3208 | ** Then, we flush the commit or journal list, and just return 0 | 3510 | /* if wcount > 0, and we are called to with flush or commit_now, |
3209 | ** because the rest of journal end was already done for this transaction. | 3511 | ** we wait on j_join_wait. We will wake up when the last writer has |
3210 | */ | 3512 | ** finished the transaction, and started it on its way to the disk. |
3211 | if (atomic_read(&(journal->j_wcount)) > 0) { | 3513 | ** Then, we flush the commit or journal list, and just return 0 |
3212 | if (flush || commit_now) { | 3514 | ** because the rest of journal end was already done for this transaction. |
3213 | unsigned trans_id ; | 3515 | */ |
3214 | 3516 | if (atomic_read(&(journal->j_wcount)) > 0) { | |
3215 | jl = journal->j_current_jl; | 3517 | if (flush || commit_now) { |
3216 | trans_id = jl->j_trans_id; | 3518 | unsigned trans_id; |
3217 | if (wait_on_commit) | 3519 | |
3218 | jl->j_state |= LIST_COMMIT_PENDING; | 3520 | jl = journal->j_current_jl; |
3219 | atomic_set(&(journal->j_jlock), 1) ; | 3521 | trans_id = jl->j_trans_id; |
3220 | if (flush) { | 3522 | if (wait_on_commit) |
3221 | journal->j_next_full_flush = 1 ; | 3523 | jl->j_state |= LIST_COMMIT_PENDING; |
3222 | } | 3524 | atomic_set(&(journal->j_jlock), 1); |
3223 | unlock_journal(p_s_sb) ; | 3525 | if (flush) { |
3224 | 3526 | journal->j_next_full_flush = 1; | |
3225 | /* sleep while the current transaction is still j_jlocked */ | 3527 | } |
3226 | while(journal->j_trans_id == trans_id) { | 3528 | unlock_journal(p_s_sb); |
3227 | if (atomic_read(&journal->j_jlock)) { | 3529 | |
3228 | queue_log_writer(p_s_sb); | 3530 | /* sleep while the current transaction is still j_jlocked */ |
3229 | } else { | 3531 | while (journal->j_trans_id == trans_id) { |
3230 | lock_journal(p_s_sb); | 3532 | if (atomic_read(&journal->j_jlock)) { |
3231 | if (journal->j_trans_id == trans_id) { | 3533 | queue_log_writer(p_s_sb); |
3232 | atomic_set(&(journal->j_jlock), 1) ; | 3534 | } else { |
3233 | } | 3535 | lock_journal(p_s_sb); |
3234 | unlock_journal(p_s_sb); | 3536 | if (journal->j_trans_id == trans_id) { |
3235 | } | 3537 | atomic_set(&(journal->j_jlock), |
3236 | } | 3538 | 1); |
3237 | if (journal->j_trans_id == trans_id) { | 3539 | } |
3238 | BUG(); | 3540 | unlock_journal(p_s_sb); |
3239 | } | 3541 | } |
3240 | if (commit_now && journal_list_still_alive(p_s_sb, trans_id) && | 3542 | } |
3241 | wait_on_commit) | 3543 | if (journal->j_trans_id == trans_id) { |
3242 | { | 3544 | BUG(); |
3243 | flush_commit_list(p_s_sb, jl, 1) ; | 3545 | } |
3244 | } | 3546 | if (commit_now |
3245 | return 0 ; | 3547 | && journal_list_still_alive(p_s_sb, trans_id) |
3246 | } | 3548 | && wait_on_commit) { |
3247 | unlock_journal(p_s_sb) ; | 3549 | flush_commit_list(p_s_sb, jl, 1); |
3248 | return 0 ; | 3550 | } |
3249 | } | 3551 | return 0; |
3250 | 3552 | } | |
3251 | /* deal with old transactions where we are the last writers */ | 3553 | unlock_journal(p_s_sb); |
3252 | now = get_seconds(); | 3554 | return 0; |
3253 | if ((now - journal->j_trans_start_time) > journal->j_max_trans_age) { | 3555 | } |
3254 | commit_now = 1 ; | 3556 | |
3255 | journal->j_next_async_flush = 1 ; | 3557 | /* deal with old transactions where we are the last writers */ |
3256 | } | 3558 | now = get_seconds(); |
3257 | /* don't batch when someone is waiting on j_join_wait */ | 3559 | if ((now - journal->j_trans_start_time) > journal->j_max_trans_age) { |
3258 | /* don't batch when syncing the commit or flushing the whole trans */ | 3560 | commit_now = 1; |
3259 | if (!(journal->j_must_wait > 0) && !(atomic_read(&(journal->j_jlock))) && !flush && !commit_now && | 3561 | journal->j_next_async_flush = 1; |
3260 | (journal->j_len < journal->j_max_batch) && | 3562 | } |
3261 | journal->j_len_alloc < journal->j_max_batch && journal->j_cnode_free > (journal->j_trans_max * 3)) { | 3563 | /* don't batch when someone is waiting on j_join_wait */ |
3262 | journal->j_bcount++ ; | 3564 | /* don't batch when syncing the commit or flushing the whole trans */ |
3263 | unlock_journal(p_s_sb) ; | 3565 | if (!(journal->j_must_wait > 0) && !(atomic_read(&(journal->j_jlock))) |
3264 | return 0 ; | 3566 | && !flush && !commit_now && (journal->j_len < journal->j_max_batch) |
3265 | } | 3567 | && journal->j_len_alloc < journal->j_max_batch |
3266 | 3568 | && journal->j_cnode_free > (journal->j_trans_max * 3)) { | |
3267 | if (journal->j_start > SB_ONDISK_JOURNAL_SIZE(p_s_sb)) { | 3569 | journal->j_bcount++; |
3268 | reiserfs_panic(p_s_sb, "journal-003: journal_end: j_start (%ld) is too high\n", journal->j_start) ; | 3570 | unlock_journal(p_s_sb); |
3269 | } | 3571 | return 0; |
3270 | return 1 ; | 3572 | } |
3573 | |||
3574 | if (journal->j_start > SB_ONDISK_JOURNAL_SIZE(p_s_sb)) { | ||
3575 | reiserfs_panic(p_s_sb, | ||
3576 | "journal-003: journal_end: j_start (%ld) is too high\n", | ||
3577 | journal->j_start); | ||
3578 | } | ||
3579 | return 1; | ||
3271 | } | 3580 | } |
3272 | 3581 | ||
3273 | /* | 3582 | /* |
@@ -3284,83 +3593,95 @@ static int check_journal_end(struct reiserfs_transaction_handle *th, struct supe | |||
3284 | ** | 3593 | ** |
3285 | ** Then remove it from the current transaction, decrementing any counters and filing it on the clean list. | 3594 | ** Then remove it from the current transaction, decrementing any counters and filing it on the clean list. |
3286 | */ | 3595 | */ |
3287 | int journal_mark_freed(struct reiserfs_transaction_handle *th, struct super_block *p_s_sb, b_blocknr_t blocknr) { | 3596 | int journal_mark_freed(struct reiserfs_transaction_handle *th, |
3288 | struct reiserfs_journal *journal = SB_JOURNAL (p_s_sb); | 3597 | struct super_block *p_s_sb, b_blocknr_t blocknr) |
3289 | struct reiserfs_journal_cnode *cn = NULL ; | 3598 | { |
3290 | struct buffer_head *bh = NULL ; | 3599 | struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb); |
3291 | struct reiserfs_list_bitmap *jb = NULL ; | 3600 | struct reiserfs_journal_cnode *cn = NULL; |
3292 | int cleaned = 0 ; | 3601 | struct buffer_head *bh = NULL; |
3293 | BUG_ON (!th->t_trans_id); | 3602 | struct reiserfs_list_bitmap *jb = NULL; |
3294 | 3603 | int cleaned = 0; | |
3295 | cn = get_journal_hash_dev(p_s_sb, journal->j_hash_table, blocknr); | 3604 | BUG_ON(!th->t_trans_id); |
3296 | if (cn && cn->bh) { | 3605 | |
3297 | bh = cn->bh ; | 3606 | cn = get_journal_hash_dev(p_s_sb, journal->j_hash_table, blocknr); |
3298 | get_bh(bh) ; | 3607 | if (cn && cn->bh) { |
3299 | } | 3608 | bh = cn->bh; |
3300 | /* if it is journal new, we just remove it from this transaction */ | 3609 | get_bh(bh); |
3301 | if (bh && buffer_journal_new(bh)) { | 3610 | } |
3302 | clear_buffer_journal_new (bh); | 3611 | /* if it is journal new, we just remove it from this transaction */ |
3303 | clear_prepared_bits(bh) ; | 3612 | if (bh && buffer_journal_new(bh)) { |
3304 | reiserfs_clean_and_file_buffer(bh) ; | 3613 | clear_buffer_journal_new(bh); |
3305 | cleaned = remove_from_transaction(p_s_sb, blocknr, cleaned) ; | 3614 | clear_prepared_bits(bh); |
3306 | } else { | 3615 | reiserfs_clean_and_file_buffer(bh); |
3307 | /* set the bit for this block in the journal bitmap for this transaction */ | 3616 | cleaned = remove_from_transaction(p_s_sb, blocknr, cleaned); |
3308 | jb = journal->j_current_jl->j_list_bitmap; | 3617 | } else { |
3309 | if (!jb) { | 3618 | /* set the bit for this block in the journal bitmap for this transaction */ |
3310 | reiserfs_panic(p_s_sb, "journal-1702: journal_mark_freed, journal_list_bitmap is NULL\n") ; | 3619 | jb = journal->j_current_jl->j_list_bitmap; |
3311 | } | 3620 | if (!jb) { |
3312 | set_bit_in_list_bitmap(p_s_sb, blocknr, jb) ; | 3621 | reiserfs_panic(p_s_sb, |
3313 | 3622 | "journal-1702: journal_mark_freed, journal_list_bitmap is NULL\n"); | |
3314 | /* Note, the entire while loop is not allowed to schedule. */ | 3623 | } |
3315 | 3624 | set_bit_in_list_bitmap(p_s_sb, blocknr, jb); | |
3316 | if (bh) { | 3625 | |
3317 | clear_prepared_bits(bh) ; | 3626 | /* Note, the entire while loop is not allowed to schedule. */ |
3318 | reiserfs_clean_and_file_buffer(bh) ; | 3627 | |
3319 | } | 3628 | if (bh) { |
3320 | cleaned = remove_from_transaction(p_s_sb, blocknr, cleaned) ; | 3629 | clear_prepared_bits(bh); |
3321 | 3630 | reiserfs_clean_and_file_buffer(bh); | |
3322 | /* find all older transactions with this block, make sure they don't try to write it out */ | 3631 | } |
3323 | cn = get_journal_hash_dev(p_s_sb,journal->j_list_hash_table, blocknr) ; | 3632 | cleaned = remove_from_transaction(p_s_sb, blocknr, cleaned); |
3324 | while (cn) { | 3633 | |
3325 | if (p_s_sb == cn->sb && blocknr == cn->blocknr) { | 3634 | /* find all older transactions with this block, make sure they don't try to write it out */ |
3326 | set_bit(BLOCK_FREED, &cn->state) ; | 3635 | cn = get_journal_hash_dev(p_s_sb, journal->j_list_hash_table, |
3327 | if (cn->bh) { | 3636 | blocknr); |
3328 | if (!cleaned) { | 3637 | while (cn) { |
3329 | /* remove_from_transaction will brelse the buffer if it was | 3638 | if (p_s_sb == cn->sb && blocknr == cn->blocknr) { |
3330 | ** in the current trans | 3639 | set_bit(BLOCK_FREED, &cn->state); |
3331 | */ | 3640 | if (cn->bh) { |
3332 | clear_buffer_journal_dirty (cn->bh); | 3641 | if (!cleaned) { |
3333 | clear_buffer_dirty(cn->bh); | 3642 | /* remove_from_transaction will brelse the buffer if it was |
3334 | clear_buffer_journal_test(cn->bh); | 3643 | ** in the current trans |
3335 | cleaned = 1 ; | 3644 | */ |
3336 | put_bh(cn->bh) ; | 3645 | clear_buffer_journal_dirty(cn-> |
3337 | if (atomic_read(&(cn->bh->b_count)) < 0) { | 3646 | bh); |
3338 | reiserfs_warning (p_s_sb, "journal-2138: cn->bh->b_count < 0"); | 3647 | clear_buffer_dirty(cn->bh); |
3339 | } | 3648 | clear_buffer_journal_test(cn-> |
3340 | } | 3649 | bh); |
3341 | if (cn->jlist) { /* since we are clearing the bh, we MUST dec nonzerolen */ | 3650 | cleaned = 1; |
3342 | atomic_dec(&(cn->jlist->j_nonzerolen)) ; | 3651 | put_bh(cn->bh); |
3343 | } | 3652 | if (atomic_read |
3344 | cn->bh = NULL ; | 3653 | (&(cn->bh->b_count)) < 0) { |
3345 | } | 3654 | reiserfs_warning(p_s_sb, |
3346 | } | 3655 | "journal-2138: cn->bh->b_count < 0"); |
3347 | cn = cn->hnext ; | 3656 | } |
3348 | } | 3657 | } |
3349 | } | 3658 | if (cn->jlist) { /* since we are clearing the bh, we MUST dec nonzerolen */ |
3350 | 3659 | atomic_dec(& | |
3351 | if (bh) { | 3660 | (cn->jlist-> |
3352 | put_bh(bh) ; /* get_hash grabs the buffer */ | 3661 | j_nonzerolen)); |
3353 | if (atomic_read(&(bh->b_count)) < 0) { | 3662 | } |
3354 | reiserfs_warning (p_s_sb, "journal-2165: bh->b_count < 0"); | 3663 | cn->bh = NULL; |
3355 | } | 3664 | } |
3356 | } | 3665 | } |
3357 | return 0 ; | 3666 | cn = cn->hnext; |
3358 | } | 3667 | } |
3359 | 3668 | } | |
3360 | void reiserfs_update_inode_transaction(struct inode *inode) { | 3669 | |
3361 | struct reiserfs_journal *journal = SB_JOURNAL (inode->i_sb); | 3670 | if (bh) { |
3362 | REISERFS_I(inode)->i_jl = journal->j_current_jl; | 3671 | put_bh(bh); /* get_hash grabs the buffer */ |
3363 | REISERFS_I(inode)->i_trans_id = journal->j_trans_id ; | 3672 | if (atomic_read(&(bh->b_count)) < 0) { |
3673 | reiserfs_warning(p_s_sb, | ||
3674 | "journal-2165: bh->b_count < 0"); | ||
3675 | } | ||
3676 | } | ||
3677 | return 0; | ||
3678 | } | ||
3679 | |||
3680 | void reiserfs_update_inode_transaction(struct inode *inode) | ||
3681 | { | ||
3682 | struct reiserfs_journal *journal = SB_JOURNAL(inode->i_sb); | ||
3683 | REISERFS_I(inode)->i_jl = journal->j_current_jl; | ||
3684 | REISERFS_I(inode)->i_trans_id = journal->j_trans_id; | ||
3364 | } | 3685 | } |
3365 | 3686 | ||
3366 | /* | 3687 | /* |
@@ -3368,99 +3689,102 @@ void reiserfs_update_inode_transaction(struct inode *inode) { | |||
3368 | * if a transaction was actually committed and the barrier was done | 3689 | * if a transaction was actually committed and the barrier was done |
3369 | */ | 3690 | */ |
3370 | static int __commit_trans_jl(struct inode *inode, unsigned long id, | 3691 | static int __commit_trans_jl(struct inode *inode, unsigned long id, |
3371 | struct reiserfs_journal_list *jl) | 3692 | struct reiserfs_journal_list *jl) |
3372 | { | 3693 | { |
3373 | struct reiserfs_transaction_handle th ; | 3694 | struct reiserfs_transaction_handle th; |
3374 | struct super_block *sb = inode->i_sb ; | 3695 | struct super_block *sb = inode->i_sb; |
3375 | struct reiserfs_journal *journal = SB_JOURNAL (sb); | 3696 | struct reiserfs_journal *journal = SB_JOURNAL(sb); |
3376 | int ret = 0; | 3697 | int ret = 0; |
3698 | |||
3699 | /* is it from the current transaction, or from an unknown transaction? */ | ||
3700 | if (id == journal->j_trans_id) { | ||
3701 | jl = journal->j_current_jl; | ||
3702 | /* try to let other writers come in and grow this transaction */ | ||
3703 | let_transaction_grow(sb, id); | ||
3704 | if (journal->j_trans_id != id) { | ||
3705 | goto flush_commit_only; | ||
3706 | } | ||
3377 | 3707 | ||
3378 | /* is it from the current transaction, or from an unknown transaction? */ | 3708 | ret = journal_begin(&th, sb, 1); |
3379 | if (id == journal->j_trans_id) { | 3709 | if (ret) |
3380 | jl = journal->j_current_jl; | 3710 | return ret; |
3381 | /* try to let other writers come in and grow this transaction */ | 3711 | |
3382 | let_transaction_grow(sb, id); | 3712 | /* someone might have ended this transaction while we joined */ |
3383 | if (journal->j_trans_id != id) { | 3713 | if (journal->j_trans_id != id) { |
3384 | goto flush_commit_only; | 3714 | reiserfs_prepare_for_journal(sb, SB_BUFFER_WITH_SB(sb), |
3385 | } | 3715 | 1); |
3716 | journal_mark_dirty(&th, sb, SB_BUFFER_WITH_SB(sb)); | ||
3717 | ret = journal_end(&th, sb, 1); | ||
3718 | goto flush_commit_only; | ||
3719 | } | ||
3386 | 3720 | ||
3387 | ret = journal_begin(&th, sb, 1) ; | 3721 | ret = journal_end_sync(&th, sb, 1); |
3388 | if (ret) | 3722 | if (!ret) |
3389 | return ret; | 3723 | ret = 1; |
3390 | 3724 | ||
3391 | /* someone might have ended this transaction while we joined */ | 3725 | } else { |
3392 | if (journal->j_trans_id != id) { | 3726 | /* this gets tricky, we have to make sure the journal list in |
3393 | reiserfs_prepare_for_journal(sb, SB_BUFFER_WITH_SB(sb), 1) ; | 3727 | * the inode still exists. We know the list is still around |
3394 | journal_mark_dirty(&th, sb, SB_BUFFER_WITH_SB(sb)) ; | 3728 | * if we've got a larger transaction id than the oldest list |
3395 | ret = journal_end(&th, sb, 1) ; | 3729 | */ |
3396 | goto flush_commit_only; | 3730 | flush_commit_only: |
3731 | if (journal_list_still_alive(inode->i_sb, id)) { | ||
3732 | /* | ||
3733 | * we only set ret to 1 when we know for sure | ||
3734 | * the barrier hasn't been started yet on the commit | ||
3735 | * block. | ||
3736 | */ | ||
3737 | if (atomic_read(&jl->j_commit_left) > 1) | ||
3738 | ret = 1; | ||
3739 | flush_commit_list(sb, jl, 1); | ||
3740 | if (journal->j_errno) | ||
3741 | ret = journal->j_errno; | ||
3742 | } | ||
3397 | } | 3743 | } |
3744 | /* otherwise the list is gone, and long since committed */ | ||
3745 | return ret; | ||
3746 | } | ||
3398 | 3747 | ||
3399 | ret = journal_end_sync(&th, sb, 1) ; | 3748 | int reiserfs_commit_for_inode(struct inode *inode) |
3400 | if (!ret) | 3749 | { |
3401 | ret = 1; | 3750 | unsigned long id = REISERFS_I(inode)->i_trans_id; |
3751 | struct reiserfs_journal_list *jl = REISERFS_I(inode)->i_jl; | ||
3402 | 3752 | ||
3403 | } else { | 3753 | /* for the whole inode, assume unset id means it was |
3404 | /* this gets tricky, we have to make sure the journal list in | 3754 | * changed in the current transaction. More conservative |
3405 | * the inode still exists. We know the list is still around | ||
3406 | * if we've got a larger transaction id than the oldest list | ||
3407 | */ | 3755 | */ |
3408 | flush_commit_only: | 3756 | if (!id || !jl) { |
3409 | if (journal_list_still_alive(inode->i_sb, id)) { | 3757 | reiserfs_update_inode_transaction(inode); |
3410 | /* | 3758 | id = REISERFS_I(inode)->i_trans_id; |
3411 | * we only set ret to 1 when we know for sure | 3759 | /* jl will be updated in __commit_trans_jl */ |
3412 | * the barrier hasn't been started yet on the commit | 3760 | } |
3413 | * block. | 3761 | |
3414 | */ | 3762 | return __commit_trans_jl(inode, id, jl); |
3415 | if (atomic_read(&jl->j_commit_left) > 1) | 3763 | } |
3416 | ret = 1; | 3764 | |
3417 | flush_commit_list(sb, jl, 1) ; | 3765 | void reiserfs_restore_prepared_buffer(struct super_block *p_s_sb, |
3418 | if (journal->j_errno) | 3766 | struct buffer_head *bh) |
3419 | ret = journal->j_errno; | 3767 | { |
3420 | } | 3768 | struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb); |
3421 | } | 3769 | PROC_INFO_INC(p_s_sb, journal.restore_prepared); |
3422 | /* otherwise the list is gone, and long since committed */ | 3770 | if (!bh) { |
3423 | return ret; | 3771 | return; |
3424 | } | 3772 | } |
3425 | 3773 | if (test_clear_buffer_journal_restore_dirty(bh) && | |
3426 | int reiserfs_commit_for_inode(struct inode *inode) { | 3774 | buffer_journal_dirty(bh)) { |
3427 | unsigned long id = REISERFS_I(inode)->i_trans_id; | 3775 | struct reiserfs_journal_cnode *cn; |
3428 | struct reiserfs_journal_list *jl = REISERFS_I(inode)->i_jl; | 3776 | cn = get_journal_hash_dev(p_s_sb, |
3429 | 3777 | journal->j_list_hash_table, | |
3430 | /* for the whole inode, assume unset id means it was | 3778 | bh->b_blocknr); |
3431 | * changed in the current transaction. More conservative | 3779 | if (cn && can_dirty(cn)) { |
3432 | */ | 3780 | set_buffer_journal_test(bh); |
3433 | if (!id || !jl) { | 3781 | mark_buffer_dirty(bh); |
3434 | reiserfs_update_inode_transaction(inode) ; | 3782 | } |
3435 | id = REISERFS_I(inode)->i_trans_id; | 3783 | } |
3436 | /* jl will be updated in __commit_trans_jl */ | 3784 | clear_buffer_journal_prepared(bh); |
3437 | } | 3785 | } |
3438 | 3786 | ||
3439 | return __commit_trans_jl(inode, id, jl); | 3787 | extern struct tree_balance *cur_tb; |
3440 | } | ||
3441 | |||
3442 | void reiserfs_restore_prepared_buffer(struct super_block *p_s_sb, | ||
3443 | struct buffer_head *bh) { | ||
3444 | struct reiserfs_journal *journal = SB_JOURNAL (p_s_sb); | ||
3445 | PROC_INFO_INC( p_s_sb, journal.restore_prepared ); | ||
3446 | if (!bh) { | ||
3447 | return ; | ||
3448 | } | ||
3449 | if (test_clear_buffer_journal_restore_dirty (bh) && | ||
3450 | buffer_journal_dirty(bh)) { | ||
3451 | struct reiserfs_journal_cnode *cn; | ||
3452 | cn = get_journal_hash_dev(p_s_sb, | ||
3453 | journal->j_list_hash_table, | ||
3454 | bh->b_blocknr); | ||
3455 | if (cn && can_dirty(cn)) { | ||
3456 | set_buffer_journal_test (bh); | ||
3457 | mark_buffer_dirty(bh); | ||
3458 | } | ||
3459 | } | ||
3460 | clear_buffer_journal_prepared (bh); | ||
3461 | } | ||
3462 | |||
3463 | extern struct tree_balance *cur_tb ; | ||
3464 | /* | 3788 | /* |
3465 | ** before we can change a metadata block, we have to make sure it won't | 3789 | ** before we can change a metadata block, we have to make sure it won't |
3466 | ** be written to disk while we are altering it. So, we must: | 3790 | ** be written to disk while we are altering it. So, we must: |
@@ -3469,39 +3793,41 @@ extern struct tree_balance *cur_tb ; | |||
3469 | ** | 3793 | ** |
3470 | */ | 3794 | */ |
3471 | int reiserfs_prepare_for_journal(struct super_block *p_s_sb, | 3795 | int reiserfs_prepare_for_journal(struct super_block *p_s_sb, |
3472 | struct buffer_head *bh, int wait) { | 3796 | struct buffer_head *bh, int wait) |
3473 | PROC_INFO_INC( p_s_sb, journal.prepare ); | 3797 | { |
3474 | 3798 | PROC_INFO_INC(p_s_sb, journal.prepare); | |
3475 | if (test_set_buffer_locked(bh)) { | 3799 | |
3476 | if (!wait) | 3800 | if (test_set_buffer_locked(bh)) { |
3477 | return 0; | 3801 | if (!wait) |
3478 | lock_buffer(bh); | 3802 | return 0; |
3479 | } | 3803 | lock_buffer(bh); |
3480 | set_buffer_journal_prepared (bh); | 3804 | } |
3481 | if (test_clear_buffer_dirty(bh) && buffer_journal_dirty(bh)) { | 3805 | set_buffer_journal_prepared(bh); |
3482 | clear_buffer_journal_test (bh); | 3806 | if (test_clear_buffer_dirty(bh) && buffer_journal_dirty(bh)) { |
3483 | set_buffer_journal_restore_dirty (bh); | 3807 | clear_buffer_journal_test(bh); |
3484 | } | 3808 | set_buffer_journal_restore_dirty(bh); |
3485 | unlock_buffer(bh); | 3809 | } |
3486 | return 1; | 3810 | unlock_buffer(bh); |
3487 | } | 3811 | return 1; |
3488 | 3812 | } | |
3489 | static void flush_old_journal_lists(struct super_block *s) { | 3813 | |
3490 | struct reiserfs_journal *journal = SB_JOURNAL (s); | 3814 | static void flush_old_journal_lists(struct super_block *s) |
3491 | struct reiserfs_journal_list *jl; | 3815 | { |
3492 | struct list_head *entry; | 3816 | struct reiserfs_journal *journal = SB_JOURNAL(s); |
3493 | time_t now = get_seconds(); | 3817 | struct reiserfs_journal_list *jl; |
3494 | 3818 | struct list_head *entry; | |
3495 | while(!list_empty(&journal->j_journal_list)) { | 3819 | time_t now = get_seconds(); |
3496 | entry = journal->j_journal_list.next; | 3820 | |
3497 | jl = JOURNAL_LIST_ENTRY(entry); | 3821 | while (!list_empty(&journal->j_journal_list)) { |
3498 | /* this check should always be run, to send old lists to disk */ | 3822 | entry = journal->j_journal_list.next; |
3499 | if (jl->j_timestamp < (now - (JOURNAL_MAX_TRANS_AGE * 4))) { | 3823 | jl = JOURNAL_LIST_ENTRY(entry); |
3500 | flush_used_journal_lists(s, jl); | 3824 | /* this check should always be run, to send old lists to disk */ |
3501 | } else { | 3825 | if (jl->j_timestamp < (now - (JOURNAL_MAX_TRANS_AGE * 4))) { |
3502 | break; | 3826 | flush_used_journal_lists(s, jl); |
3827 | } else { | ||
3828 | break; | ||
3829 | } | ||
3503 | } | 3830 | } |
3504 | } | ||
3505 | } | 3831 | } |
3506 | 3832 | ||
3507 | /* | 3833 | /* |
@@ -3514,375 +3840,390 @@ static void flush_old_journal_lists(struct super_block *s) { | |||
3514 | ** If the journal is aborted, we just clean up. Things like flushing | 3840 | ** If the journal is aborted, we just clean up. Things like flushing |
3515 | ** journal lists, etc just won't happen. | 3841 | ** journal lists, etc just won't happen. |
3516 | */ | 3842 | */ |
3517 | static int do_journal_end(struct reiserfs_transaction_handle *th, struct super_block * p_s_sb, unsigned long nblocks, | 3843 | static int do_journal_end(struct reiserfs_transaction_handle *th, |
3518 | int flags) { | 3844 | struct super_block *p_s_sb, unsigned long nblocks, |
3519 | struct reiserfs_journal *journal = SB_JOURNAL (p_s_sb); | 3845 | int flags) |
3520 | struct reiserfs_journal_cnode *cn, *next, *jl_cn; | 3846 | { |
3521 | struct reiserfs_journal_cnode *last_cn = NULL; | 3847 | struct reiserfs_journal *journal = SB_JOURNAL(p_s_sb); |
3522 | struct reiserfs_journal_desc *desc ; | 3848 | struct reiserfs_journal_cnode *cn, *next, *jl_cn; |
3523 | struct reiserfs_journal_commit *commit ; | 3849 | struct reiserfs_journal_cnode *last_cn = NULL; |
3524 | struct buffer_head *c_bh ; /* commit bh */ | 3850 | struct reiserfs_journal_desc *desc; |
3525 | struct buffer_head *d_bh ; /* desc bh */ | 3851 | struct reiserfs_journal_commit *commit; |
3526 | int cur_write_start = 0 ; /* start index of current log write */ | 3852 | struct buffer_head *c_bh; /* commit bh */ |
3527 | int old_start ; | 3853 | struct buffer_head *d_bh; /* desc bh */ |
3528 | int i ; | 3854 | int cur_write_start = 0; /* start index of current log write */ |
3529 | int flush = flags & FLUSH_ALL ; | 3855 | int old_start; |
3530 | int wait_on_commit = flags & WAIT ; | 3856 | int i; |
3531 | struct reiserfs_journal_list *jl, *temp_jl; | 3857 | int flush = flags & FLUSH_ALL; |
3532 | struct list_head *entry, *safe; | 3858 | int wait_on_commit = flags & WAIT; |
3533 | unsigned long jindex; | 3859 | struct reiserfs_journal_list *jl, *temp_jl; |
3534 | unsigned long commit_trans_id; | 3860 | struct list_head *entry, *safe; |
3535 | int trans_half; | 3861 | unsigned long jindex; |
3536 | 3862 | unsigned long commit_trans_id; | |
3537 | BUG_ON (th->t_refcount > 1); | 3863 | int trans_half; |
3538 | BUG_ON (!th->t_trans_id); | 3864 | |
3539 | 3865 | BUG_ON(th->t_refcount > 1); | |
3540 | put_fs_excl(); | 3866 | BUG_ON(!th->t_trans_id); |
3541 | current->journal_info = th->t_handle_save; | 3867 | |
3542 | reiserfs_check_lock_depth(p_s_sb, "journal end"); | 3868 | put_fs_excl(); |
3543 | if (journal->j_len == 0) { | 3869 | current->journal_info = th->t_handle_save; |
3544 | reiserfs_prepare_for_journal(p_s_sb, SB_BUFFER_WITH_SB(p_s_sb), 1) ; | 3870 | reiserfs_check_lock_depth(p_s_sb, "journal end"); |
3545 | journal_mark_dirty(th, p_s_sb, SB_BUFFER_WITH_SB(p_s_sb)) ; | 3871 | if (journal->j_len == 0) { |
3546 | } | 3872 | reiserfs_prepare_for_journal(p_s_sb, SB_BUFFER_WITH_SB(p_s_sb), |
3547 | 3873 | 1); | |
3548 | lock_journal(p_s_sb) ; | 3874 | journal_mark_dirty(th, p_s_sb, SB_BUFFER_WITH_SB(p_s_sb)); |
3549 | if (journal->j_next_full_flush) { | 3875 | } |
3550 | flags |= FLUSH_ALL ; | ||
3551 | flush = 1 ; | ||
3552 | } | ||
3553 | if (journal->j_next_async_flush) { | ||
3554 | flags |= COMMIT_NOW | WAIT; | ||
3555 | wait_on_commit = 1; | ||
3556 | } | ||
3557 | |||
3558 | /* check_journal_end locks the journal, and unlocks if it does not return 1 | ||
3559 | ** it tells us if we should continue with the journal_end, or just return | ||
3560 | */ | ||
3561 | if (!check_journal_end(th, p_s_sb, nblocks, flags)) { | ||
3562 | p_s_sb->s_dirt = 1; | ||
3563 | wake_queued_writers(p_s_sb); | ||
3564 | reiserfs_async_progress_wait(p_s_sb); | ||
3565 | goto out ; | ||
3566 | } | ||
3567 | |||
3568 | /* check_journal_end might set these, check again */ | ||
3569 | if (journal->j_next_full_flush) { | ||
3570 | flush = 1 ; | ||
3571 | } | ||
3572 | |||
3573 | /* | ||
3574 | ** j must wait means we have to flush the log blocks, and the real blocks for | ||
3575 | ** this transaction | ||
3576 | */ | ||
3577 | if (journal->j_must_wait > 0) { | ||
3578 | flush = 1 ; | ||
3579 | } | ||
3580 | 3876 | ||
3877 | lock_journal(p_s_sb); | ||
3878 | if (journal->j_next_full_flush) { | ||
3879 | flags |= FLUSH_ALL; | ||
3880 | flush = 1; | ||
3881 | } | ||
3882 | if (journal->j_next_async_flush) { | ||
3883 | flags |= COMMIT_NOW | WAIT; | ||
3884 | wait_on_commit = 1; | ||
3885 | } | ||
3886 | |||
3887 | /* check_journal_end locks the journal, and unlocks if it does not return 1 | ||
3888 | ** it tells us if we should continue with the journal_end, or just return | ||
3889 | */ | ||
3890 | if (!check_journal_end(th, p_s_sb, nblocks, flags)) { | ||
3891 | p_s_sb->s_dirt = 1; | ||
3892 | wake_queued_writers(p_s_sb); | ||
3893 | reiserfs_async_progress_wait(p_s_sb); | ||
3894 | goto out; | ||
3895 | } | ||
3896 | |||
3897 | /* check_journal_end might set these, check again */ | ||
3898 | if (journal->j_next_full_flush) { | ||
3899 | flush = 1; | ||
3900 | } | ||
3901 | |||
3902 | /* | ||
3903 | ** j must wait means we have to flush the log blocks, and the real blocks for | ||
3904 | ** this transaction | ||
3905 | */ | ||
3906 | if (journal->j_must_wait > 0) { | ||
3907 | flush = 1; | ||
3908 | } | ||
3581 | #ifdef REISERFS_PREALLOCATE | 3909 | #ifdef REISERFS_PREALLOCATE |
3582 | /* quota ops might need to nest, setup the journal_info pointer for them */ | 3910 | /* quota ops might need to nest, setup the journal_info pointer for them */ |
3583 | current->journal_info = th ; | 3911 | current->journal_info = th; |
3584 | reiserfs_discard_all_prealloc(th); /* it should not involve new blocks into | 3912 | reiserfs_discard_all_prealloc(th); /* it should not involve new blocks into |
3585 | * the transaction */ | 3913 | * the transaction */ |
3586 | current->journal_info = th->t_handle_save ; | 3914 | current->journal_info = th->t_handle_save; |
3587 | #endif | 3915 | #endif |
3588 | 3916 | ||
3589 | /* setup description block */ | 3917 | /* setup description block */ |
3590 | d_bh = journal_getblk(p_s_sb, SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + journal->j_start) ; | 3918 | d_bh = |
3591 | set_buffer_uptodate(d_bh); | 3919 | journal_getblk(p_s_sb, |
3592 | desc = (struct reiserfs_journal_desc *)(d_bh)->b_data ; | 3920 | SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + |
3593 | memset(d_bh->b_data, 0, d_bh->b_size) ; | 3921 | journal->j_start); |
3594 | memcpy(get_journal_desc_magic (d_bh), JOURNAL_DESC_MAGIC, 8) ; | 3922 | set_buffer_uptodate(d_bh); |
3595 | set_desc_trans_id(desc, journal->j_trans_id) ; | 3923 | desc = (struct reiserfs_journal_desc *)(d_bh)->b_data; |
3596 | 3924 | memset(d_bh->b_data, 0, d_bh->b_size); | |
3597 | /* setup commit block. Don't write (keep it clean too) this one until after everyone else is written */ | 3925 | memcpy(get_journal_desc_magic(d_bh), JOURNAL_DESC_MAGIC, 8); |
3598 | c_bh = journal_getblk(p_s_sb, SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + | 3926 | set_desc_trans_id(desc, journal->j_trans_id); |
3599 | ((journal->j_start + journal->j_len + 1) % SB_ONDISK_JOURNAL_SIZE(p_s_sb))) ; | 3927 | |
3600 | commit = (struct reiserfs_journal_commit *)c_bh->b_data ; | 3928 | /* setup commit block. Don't write (keep it clean too) this one until after everyone else is written */ |
3601 | memset(c_bh->b_data, 0, c_bh->b_size) ; | 3929 | c_bh = journal_getblk(p_s_sb, SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + |
3602 | set_commit_trans_id(commit, journal->j_trans_id) ; | 3930 | ((journal->j_start + journal->j_len + |
3603 | set_buffer_uptodate(c_bh) ; | 3931 | 1) % SB_ONDISK_JOURNAL_SIZE(p_s_sb))); |
3604 | 3932 | commit = (struct reiserfs_journal_commit *)c_bh->b_data; | |
3605 | /* init this journal list */ | 3933 | memset(c_bh->b_data, 0, c_bh->b_size); |
3606 | jl = journal->j_current_jl; | 3934 | set_commit_trans_id(commit, journal->j_trans_id); |
3607 | 3935 | set_buffer_uptodate(c_bh); | |
3608 | /* we lock the commit before doing anything because | 3936 | |
3609 | * we want to make sure nobody tries to run flush_commit_list until | 3937 | /* init this journal list */ |
3610 | * the new transaction is fully setup, and we've already flushed the | 3938 | jl = journal->j_current_jl; |
3611 | * ordered bh list | 3939 | |
3612 | */ | 3940 | /* we lock the commit before doing anything because |
3613 | down(&jl->j_commit_lock); | 3941 | * we want to make sure nobody tries to run flush_commit_list until |
3614 | 3942 | * the new transaction is fully setup, and we've already flushed the | |
3615 | /* save the transaction id in case we need to commit it later */ | 3943 | * ordered bh list |
3616 | commit_trans_id = jl->j_trans_id; | 3944 | */ |
3617 | 3945 | down(&jl->j_commit_lock); | |
3618 | atomic_set(&jl->j_older_commits_done, 0) ; | 3946 | |
3619 | jl->j_trans_id = journal->j_trans_id ; | 3947 | /* save the transaction id in case we need to commit it later */ |
3620 | jl->j_timestamp = journal->j_trans_start_time ; | 3948 | commit_trans_id = jl->j_trans_id; |
3621 | jl->j_commit_bh = c_bh ; | 3949 | |
3622 | jl->j_start = journal->j_start ; | 3950 | atomic_set(&jl->j_older_commits_done, 0); |
3623 | jl->j_len = journal->j_len ; | 3951 | jl->j_trans_id = journal->j_trans_id; |
3624 | atomic_set(&jl->j_nonzerolen, journal->j_len) ; | 3952 | jl->j_timestamp = journal->j_trans_start_time; |
3625 | atomic_set(&jl->j_commit_left, journal->j_len + 2); | 3953 | jl->j_commit_bh = c_bh; |
3626 | jl->j_realblock = NULL ; | 3954 | jl->j_start = journal->j_start; |
3627 | 3955 | jl->j_len = journal->j_len; | |
3628 | /* The ENTIRE FOR LOOP MUST not cause schedule to occur. | 3956 | atomic_set(&jl->j_nonzerolen, journal->j_len); |
3629 | ** for each real block, add it to the journal list hash, | 3957 | atomic_set(&jl->j_commit_left, journal->j_len + 2); |
3630 | ** copy into real block index array in the commit or desc block | 3958 | jl->j_realblock = NULL; |
3631 | */ | 3959 | |
3632 | trans_half = journal_trans_half(p_s_sb->s_blocksize); | 3960 | /* The ENTIRE FOR LOOP MUST not cause schedule to occur. |
3633 | for (i = 0, cn = journal->j_first ; cn ; cn = cn->next, i++) { | 3961 | ** for each real block, add it to the journal list hash, |
3634 | if (buffer_journaled (cn->bh)) { | 3962 | ** copy into real block index array in the commit or desc block |
3635 | jl_cn = get_cnode(p_s_sb) ; | 3963 | */ |
3636 | if (!jl_cn) { | 3964 | trans_half = journal_trans_half(p_s_sb->s_blocksize); |
3637 | reiserfs_panic(p_s_sb, "journal-1676, get_cnode returned NULL\n") ; | 3965 | for (i = 0, cn = journal->j_first; cn; cn = cn->next, i++) { |
3638 | } | 3966 | if (buffer_journaled(cn->bh)) { |
3639 | if (i == 0) { | 3967 | jl_cn = get_cnode(p_s_sb); |
3640 | jl->j_realblock = jl_cn ; | 3968 | if (!jl_cn) { |
3641 | } | 3969 | reiserfs_panic(p_s_sb, |
3642 | jl_cn->prev = last_cn ; | 3970 | "journal-1676, get_cnode returned NULL\n"); |
3643 | jl_cn->next = NULL ; | 3971 | } |
3644 | if (last_cn) { | 3972 | if (i == 0) { |
3645 | last_cn->next = jl_cn ; | 3973 | jl->j_realblock = jl_cn; |
3646 | } | 3974 | } |
3647 | last_cn = jl_cn ; | 3975 | jl_cn->prev = last_cn; |
3648 | /* make sure the block we are trying to log is not a block | 3976 | jl_cn->next = NULL; |
3649 | of journal or reserved area */ | 3977 | if (last_cn) { |
3650 | 3978 | last_cn->next = jl_cn; | |
3651 | if (is_block_in_log_or_reserved_area(p_s_sb, cn->bh->b_blocknr)) { | 3979 | } |
3652 | reiserfs_panic(p_s_sb, "journal-2332: Trying to log block %lu, which is a log block\n", cn->bh->b_blocknr) ; | 3980 | last_cn = jl_cn; |
3653 | } | 3981 | /* make sure the block we are trying to log is not a block |
3654 | jl_cn->blocknr = cn->bh->b_blocknr ; | 3982 | of journal or reserved area */ |
3655 | jl_cn->state = 0 ; | 3983 | |
3656 | jl_cn->sb = p_s_sb; | 3984 | if (is_block_in_log_or_reserved_area |
3657 | jl_cn->bh = cn->bh ; | 3985 | (p_s_sb, cn->bh->b_blocknr)) { |
3658 | jl_cn->jlist = jl; | 3986 | reiserfs_panic(p_s_sb, |
3659 | insert_journal_hash(journal->j_list_hash_table, jl_cn) ; | 3987 | "journal-2332: Trying to log block %lu, which is a log block\n", |
3660 | if (i < trans_half) { | 3988 | cn->bh->b_blocknr); |
3661 | desc->j_realblock[i] = cpu_to_le32(cn->bh->b_blocknr) ; | 3989 | } |
3662 | } else { | 3990 | jl_cn->blocknr = cn->bh->b_blocknr; |
3663 | commit->j_realblock[i - trans_half] = cpu_to_le32(cn->bh->b_blocknr) ; | 3991 | jl_cn->state = 0; |
3664 | } | 3992 | jl_cn->sb = p_s_sb; |
3665 | } else { | 3993 | jl_cn->bh = cn->bh; |
3666 | i-- ; | 3994 | jl_cn->jlist = jl; |
3667 | } | 3995 | insert_journal_hash(journal->j_list_hash_table, jl_cn); |
3668 | } | 3996 | if (i < trans_half) { |
3669 | set_desc_trans_len(desc, journal->j_len) ; | 3997 | desc->j_realblock[i] = |
3670 | set_desc_mount_id(desc, journal->j_mount_id) ; | 3998 | cpu_to_le32(cn->bh->b_blocknr); |
3671 | set_desc_trans_id(desc, journal->j_trans_id) ; | 3999 | } else { |
3672 | set_commit_trans_len(commit, journal->j_len); | 4000 | commit->j_realblock[i - trans_half] = |
3673 | 4001 | cpu_to_le32(cn->bh->b_blocknr); | |
3674 | /* special check in case all buffers in the journal were marked for not logging */ | 4002 | } |
3675 | if (journal->j_len == 0) { | 4003 | } else { |
3676 | BUG(); | 4004 | i--; |
3677 | } | 4005 | } |
3678 | 4006 | } | |
3679 | /* we're about to dirty all the log blocks, mark the description block | 4007 | set_desc_trans_len(desc, journal->j_len); |
3680 | * dirty now too. Don't mark the commit block dirty until all the | 4008 | set_desc_mount_id(desc, journal->j_mount_id); |
3681 | * others are on disk | 4009 | set_desc_trans_id(desc, journal->j_trans_id); |
3682 | */ | 4010 | set_commit_trans_len(commit, journal->j_len); |
3683 | mark_buffer_dirty(d_bh); | 4011 | |
3684 | 4012 | /* special check in case all buffers in the journal were marked for not logging */ | |
3685 | /* first data block is j_start + 1, so add one to cur_write_start wherever you use it */ | 4013 | if (journal->j_len == 0) { |
3686 | cur_write_start = journal->j_start ; | 4014 | BUG(); |
3687 | cn = journal->j_first ; | 4015 | } |
3688 | jindex = 1 ; /* start at one so we don't get the desc again */ | 4016 | |
3689 | while(cn) { | 4017 | /* we're about to dirty all the log blocks, mark the description block |
3690 | clear_buffer_journal_new (cn->bh); | 4018 | * dirty now too. Don't mark the commit block dirty until all the |
3691 | /* copy all the real blocks into log area. dirty log blocks */ | 4019 | * others are on disk |
3692 | if (buffer_journaled (cn->bh)) { | 4020 | */ |
3693 | struct buffer_head *tmp_bh ; | 4021 | mark_buffer_dirty(d_bh); |
3694 | char *addr; | 4022 | |
3695 | struct page *page; | 4023 | /* first data block is j_start + 1, so add one to cur_write_start wherever you use it */ |
3696 | tmp_bh = journal_getblk(p_s_sb, SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + | 4024 | cur_write_start = journal->j_start; |
3697 | ((cur_write_start + jindex) % SB_ONDISK_JOURNAL_SIZE(p_s_sb))) ; | 4025 | cn = journal->j_first; |
3698 | set_buffer_uptodate(tmp_bh); | 4026 | jindex = 1; /* start at one so we don't get the desc again */ |
3699 | page = cn->bh->b_page; | 4027 | while (cn) { |
3700 | addr = kmap(page); | 4028 | clear_buffer_journal_new(cn->bh); |
3701 | memcpy(tmp_bh->b_data, addr + offset_in_page(cn->bh->b_data), | 4029 | /* copy all the real blocks into log area. dirty log blocks */ |
3702 | cn->bh->b_size); | 4030 | if (buffer_journaled(cn->bh)) { |
3703 | kunmap(page); | 4031 | struct buffer_head *tmp_bh; |
3704 | mark_buffer_dirty(tmp_bh); | 4032 | char *addr; |
3705 | jindex++ ; | 4033 | struct page *page; |
3706 | set_buffer_journal_dirty (cn->bh); | 4034 | tmp_bh = |
3707 | clear_buffer_journaled (cn->bh); | 4035 | journal_getblk(p_s_sb, |
3708 | } else { | 4036 | SB_ONDISK_JOURNAL_1st_BLOCK(p_s_sb) + |
3709 | /* JDirty cleared sometime during transaction. don't log this one */ | 4037 | ((cur_write_start + |
3710 | reiserfs_warning(p_s_sb, "journal-2048: do_journal_end: BAD, buffer in journal hash, but not JDirty!") ; | 4038 | jindex) % |
3711 | brelse(cn->bh) ; | 4039 | SB_ONDISK_JOURNAL_SIZE(p_s_sb))); |
3712 | } | 4040 | set_buffer_uptodate(tmp_bh); |
3713 | next = cn->next ; | 4041 | page = cn->bh->b_page; |
3714 | free_cnode(p_s_sb, cn) ; | 4042 | addr = kmap(page); |
3715 | cn = next ; | 4043 | memcpy(tmp_bh->b_data, |
3716 | cond_resched(); | 4044 | addr + offset_in_page(cn->bh->b_data), |
3717 | } | 4045 | cn->bh->b_size); |
3718 | 4046 | kunmap(page); | |
3719 | /* we are done with both the c_bh and d_bh, but | 4047 | mark_buffer_dirty(tmp_bh); |
3720 | ** c_bh must be written after all other commit blocks, | 4048 | jindex++; |
3721 | ** so we dirty/relse c_bh in flush_commit_list, with commit_left <= 1. | 4049 | set_buffer_journal_dirty(cn->bh); |
3722 | */ | 4050 | clear_buffer_journaled(cn->bh); |
3723 | 4051 | } else { | |
3724 | journal->j_current_jl = alloc_journal_list(p_s_sb); | 4052 | /* JDirty cleared sometime during transaction. don't log this one */ |
3725 | 4053 | reiserfs_warning(p_s_sb, | |
3726 | /* now it is safe to insert this transaction on the main list */ | 4054 | "journal-2048: do_journal_end: BAD, buffer in journal hash, but not JDirty!"); |
3727 | list_add_tail(&jl->j_list, &journal->j_journal_list); | 4055 | brelse(cn->bh); |
3728 | list_add_tail(&jl->j_working_list, &journal->j_working_list); | 4056 | } |
3729 | journal->j_num_work_lists++; | 4057 | next = cn->next; |
3730 | 4058 | free_cnode(p_s_sb, cn); | |
3731 | /* reset journal values for the next transaction */ | 4059 | cn = next; |
3732 | old_start = journal->j_start ; | 4060 | cond_resched(); |
3733 | journal->j_start = (journal->j_start + journal->j_len + 2) % SB_ONDISK_JOURNAL_SIZE(p_s_sb); | 4061 | } |
3734 | atomic_set(&(journal->j_wcount), 0) ; | 4062 | |
3735 | journal->j_bcount = 0 ; | 4063 | /* we are done with both the c_bh and d_bh, but |
3736 | journal->j_last = NULL ; | 4064 | ** c_bh must be written after all other commit blocks, |
3737 | journal->j_first = NULL ; | 4065 | ** so we dirty/relse c_bh in flush_commit_list, with commit_left <= 1. |
3738 | journal->j_len = 0 ; | 4066 | */ |
3739 | journal->j_trans_start_time = 0 ; | 4067 | |
3740 | journal->j_trans_id++ ; | 4068 | journal->j_current_jl = alloc_journal_list(p_s_sb); |
3741 | journal->j_current_jl->j_trans_id = journal->j_trans_id; | 4069 | |
3742 | journal->j_must_wait = 0 ; | 4070 | /* now it is safe to insert this transaction on the main list */ |
3743 | journal->j_len_alloc = 0 ; | 4071 | list_add_tail(&jl->j_list, &journal->j_journal_list); |
3744 | journal->j_next_full_flush = 0 ; | 4072 | list_add_tail(&jl->j_working_list, &journal->j_working_list); |
3745 | journal->j_next_async_flush = 0 ; | 4073 | journal->j_num_work_lists++; |
3746 | init_journal_hash(p_s_sb) ; | 4074 | |
3747 | 4075 | /* reset journal values for the next transaction */ | |
3748 | // make sure reiserfs_add_jh sees the new current_jl before we | 4076 | old_start = journal->j_start; |
3749 | // write out the tails | 4077 | journal->j_start = |
3750 | smp_mb(); | 4078 | (journal->j_start + journal->j_len + |
3751 | 4079 | 2) % SB_ONDISK_JOURNAL_SIZE(p_s_sb); | |
3752 | /* tail conversion targets have to hit the disk before we end the | 4080 | atomic_set(&(journal->j_wcount), 0); |
3753 | * transaction. Otherwise a later transaction might repack the tail | 4081 | journal->j_bcount = 0; |
3754 | * before this transaction commits, leaving the data block unflushed and | 4082 | journal->j_last = NULL; |
3755 | * clean, if we crash before the later transaction commits, the data block | 4083 | journal->j_first = NULL; |
3756 | * is lost. | 4084 | journal->j_len = 0; |
3757 | */ | 4085 | journal->j_trans_start_time = 0; |
3758 | if (!list_empty(&jl->j_tail_bh_list)) { | 4086 | journal->j_trans_id++; |
3759 | unlock_kernel(); | 4087 | journal->j_current_jl->j_trans_id = journal->j_trans_id; |
3760 | write_ordered_buffers(&journal->j_dirty_buffers_lock, | 4088 | journal->j_must_wait = 0; |
3761 | journal, jl, &jl->j_tail_bh_list); | 4089 | journal->j_len_alloc = 0; |
3762 | lock_kernel(); | 4090 | journal->j_next_full_flush = 0; |
3763 | } | 4091 | journal->j_next_async_flush = 0; |
3764 | if (!list_empty(&jl->j_tail_bh_list)) | 4092 | init_journal_hash(p_s_sb); |
3765 | BUG(); | 4093 | |
3766 | up(&jl->j_commit_lock); | 4094 | // make sure reiserfs_add_jh sees the new current_jl before we |
3767 | 4095 | // write out the tails | |
3768 | /* honor the flush wishes from the caller, simple commits can | 4096 | smp_mb(); |
3769 | ** be done outside the journal lock, they are done below | 4097 | |
3770 | ** | 4098 | /* tail conversion targets have to hit the disk before we end the |
3771 | ** if we don't flush the commit list right now, we put it into | 4099 | * transaction. Otherwise a later transaction might repack the tail |
3772 | ** the work queue so the people waiting on the async progress work | 4100 | * before this transaction commits, leaving the data block unflushed and |
3773 | ** queue don't wait for this proc to flush journal lists and such. | 4101 | * clean, if we crash before the later transaction commits, the data block |
3774 | */ | 4102 | * is lost. |
3775 | if (flush) { | 4103 | */ |
3776 | flush_commit_list(p_s_sb, jl, 1) ; | 4104 | if (!list_empty(&jl->j_tail_bh_list)) { |
3777 | flush_journal_list(p_s_sb, jl, 1) ; | 4105 | unlock_kernel(); |
3778 | } else if (!(jl->j_state & LIST_COMMIT_PENDING)) | 4106 | write_ordered_buffers(&journal->j_dirty_buffers_lock, |
3779 | queue_delayed_work(commit_wq, &journal->j_work, HZ/10); | 4107 | journal, jl, &jl->j_tail_bh_list); |
3780 | 4108 | lock_kernel(); | |
3781 | 4109 | } | |
3782 | /* if the next transaction has any chance of wrapping, flush | 4110 | if (!list_empty(&jl->j_tail_bh_list)) |
3783 | ** transactions that might get overwritten. If any journal lists are very | 4111 | BUG(); |
3784 | ** old flush them as well. | 4112 | up(&jl->j_commit_lock); |
3785 | */ | 4113 | |
3786 | first_jl: | 4114 | /* honor the flush wishes from the caller, simple commits can |
3787 | list_for_each_safe(entry, safe, &journal->j_journal_list) { | 4115 | ** be done outside the journal lock, they are done below |
3788 | temp_jl = JOURNAL_LIST_ENTRY(entry); | 4116 | ** |
3789 | if (journal->j_start <= temp_jl->j_start) { | 4117 | ** if we don't flush the commit list right now, we put it into |
3790 | if ((journal->j_start + journal->j_trans_max + 1) >= | 4118 | ** the work queue so the people waiting on the async progress work |
3791 | temp_jl->j_start) | 4119 | ** queue don't wait for this proc to flush journal lists and such. |
3792 | { | 4120 | */ |
3793 | flush_used_journal_lists(p_s_sb, temp_jl); | 4121 | if (flush) { |
3794 | goto first_jl; | 4122 | flush_commit_list(p_s_sb, jl, 1); |
3795 | } else if ((journal->j_start + | 4123 | flush_journal_list(p_s_sb, jl, 1); |
3796 | journal->j_trans_max + 1) < | 4124 | } else if (!(jl->j_state & LIST_COMMIT_PENDING)) |
3797 | SB_ONDISK_JOURNAL_SIZE(p_s_sb)) | 4125 | queue_delayed_work(commit_wq, &journal->j_work, HZ / 10); |
3798 | { | 4126 | |
3799 | /* if we don't cross into the next transaction and we don't | 4127 | /* if the next transaction has any chance of wrapping, flush |
3800 | * wrap, there is no way we can overlap any later transactions | 4128 | ** transactions that might get overwritten. If any journal lists are very |
3801 | * break now | 4129 | ** old flush them as well. |
3802 | */ | 4130 | */ |
3803 | break; | 4131 | first_jl: |
3804 | } | 4132 | list_for_each_safe(entry, safe, &journal->j_journal_list) { |
3805 | } else if ((journal->j_start + | 4133 | temp_jl = JOURNAL_LIST_ENTRY(entry); |
3806 | journal->j_trans_max + 1) > | 4134 | if (journal->j_start <= temp_jl->j_start) { |
3807 | SB_ONDISK_JOURNAL_SIZE(p_s_sb)) | 4135 | if ((journal->j_start + journal->j_trans_max + 1) >= |
3808 | { | 4136 | temp_jl->j_start) { |
3809 | if (((journal->j_start + journal->j_trans_max + 1) % | 4137 | flush_used_journal_lists(p_s_sb, temp_jl); |
3810 | SB_ONDISK_JOURNAL_SIZE(p_s_sb)) >= temp_jl->j_start) | 4138 | goto first_jl; |
3811 | { | 4139 | } else if ((journal->j_start + |
3812 | flush_used_journal_lists(p_s_sb, temp_jl); | 4140 | journal->j_trans_max + 1) < |
3813 | goto first_jl; | 4141 | SB_ONDISK_JOURNAL_SIZE(p_s_sb)) { |
3814 | } else { | 4142 | /* if we don't cross into the next transaction and we don't |
3815 | /* we don't overlap anything from out start to the end of the | 4143 | * wrap, there is no way we can overlap any later transactions |
3816 | * log, and our wrapped portion doesn't overlap anything at | 4144 | * break now |
3817 | * the start of the log. We can break | 4145 | */ |
3818 | */ | 4146 | break; |
3819 | break; | 4147 | } |
3820 | } | 4148 | } else if ((journal->j_start + |
3821 | } | 4149 | journal->j_trans_max + 1) > |
3822 | } | 4150 | SB_ONDISK_JOURNAL_SIZE(p_s_sb)) { |
3823 | flush_old_journal_lists(p_s_sb); | 4151 | if (((journal->j_start + journal->j_trans_max + 1) % |
3824 | 4152 | SB_ONDISK_JOURNAL_SIZE(p_s_sb)) >= | |
3825 | journal->j_current_jl->j_list_bitmap = get_list_bitmap(p_s_sb, journal->j_current_jl) ; | 4153 | temp_jl->j_start) { |
3826 | 4154 | flush_used_journal_lists(p_s_sb, temp_jl); | |
3827 | if (!(journal->j_current_jl->j_list_bitmap)) { | 4155 | goto first_jl; |
3828 | reiserfs_panic(p_s_sb, "journal-1996: do_journal_end, could not get a list bitmap\n") ; | 4156 | } else { |
3829 | } | 4157 | /* we don't overlap anything from out start to the end of the |
3830 | 4158 | * log, and our wrapped portion doesn't overlap anything at | |
3831 | atomic_set(&(journal->j_jlock), 0) ; | 4159 | * the start of the log. We can break |
3832 | unlock_journal(p_s_sb) ; | 4160 | */ |
3833 | /* wake up any body waiting to join. */ | 4161 | break; |
3834 | clear_bit(J_WRITERS_QUEUED, &journal->j_state); | 4162 | } |
3835 | wake_up(&(journal->j_join_wait)) ; | 4163 | } |
3836 | 4164 | } | |
3837 | if (!flush && wait_on_commit && | 4165 | flush_old_journal_lists(p_s_sb); |
3838 | journal_list_still_alive(p_s_sb, commit_trans_id)) { | 4166 | |
3839 | flush_commit_list(p_s_sb, jl, 1) ; | 4167 | journal->j_current_jl->j_list_bitmap = |
3840 | } | 4168 | get_list_bitmap(p_s_sb, journal->j_current_jl); |
3841 | out: | 4169 | |
3842 | reiserfs_check_lock_depth(p_s_sb, "journal end2"); | 4170 | if (!(journal->j_current_jl->j_list_bitmap)) { |
3843 | 4171 | reiserfs_panic(p_s_sb, | |
3844 | memset (th, 0, sizeof (*th)); | 4172 | "journal-1996: do_journal_end, could not get a list bitmap\n"); |
3845 | /* Re-set th->t_super, so we can properly keep track of how many | 4173 | } |
3846 | * persistent transactions there are. We need to do this so if this | 4174 | |
3847 | * call is part of a failed restart_transaction, we can free it later */ | 4175 | atomic_set(&(journal->j_jlock), 0); |
3848 | th->t_super = p_s_sb; | 4176 | unlock_journal(p_s_sb); |
3849 | 4177 | /* wake up any body waiting to join. */ | |
3850 | return journal->j_errno; | 4178 | clear_bit(J_WRITERS_QUEUED, &journal->j_state); |
3851 | } | 4179 | wake_up(&(journal->j_join_wait)); |
3852 | 4180 | ||
3853 | static void | 4181 | if (!flush && wait_on_commit && |
3854 | __reiserfs_journal_abort_hard (struct super_block *sb) | 4182 | journal_list_still_alive(p_s_sb, commit_trans_id)) { |
3855 | { | 4183 | flush_commit_list(p_s_sb, jl, 1); |
3856 | struct reiserfs_journal *journal = SB_JOURNAL (sb); | 4184 | } |
3857 | if (test_bit (J_ABORTED, &journal->j_state)) | 4185 | out: |
3858 | return; | 4186 | reiserfs_check_lock_depth(p_s_sb, "journal end2"); |
3859 | 4187 | ||
3860 | printk (KERN_CRIT "REISERFS: Aborting journal for filesystem on %s\n", | 4188 | memset(th, 0, sizeof(*th)); |
3861 | reiserfs_bdevname (sb)); | 4189 | /* Re-set th->t_super, so we can properly keep track of how many |
3862 | 4190 | * persistent transactions there are. We need to do this so if this | |
3863 | sb->s_flags |= MS_RDONLY; | 4191 | * call is part of a failed restart_transaction, we can free it later */ |
3864 | set_bit (J_ABORTED, &journal->j_state); | 4192 | th->t_super = p_s_sb; |
4193 | |||
4194 | return journal->j_errno; | ||
4195 | } | ||
4196 | |||
4197 | static void __reiserfs_journal_abort_hard(struct super_block *sb) | ||
4198 | { | ||
4199 | struct reiserfs_journal *journal = SB_JOURNAL(sb); | ||
4200 | if (test_bit(J_ABORTED, &journal->j_state)) | ||
4201 | return; | ||
4202 | |||
4203 | printk(KERN_CRIT "REISERFS: Aborting journal for filesystem on %s\n", | ||
4204 | reiserfs_bdevname(sb)); | ||
4205 | |||
4206 | sb->s_flags |= MS_RDONLY; | ||
4207 | set_bit(J_ABORTED, &journal->j_state); | ||
3865 | 4208 | ||
3866 | #ifdef CONFIG_REISERFS_CHECK | 4209 | #ifdef CONFIG_REISERFS_CHECK |
3867 | dump_stack(); | 4210 | dump_stack(); |
3868 | #endif | 4211 | #endif |
3869 | } | 4212 | } |
3870 | 4213 | ||
3871 | static void | 4214 | static void __reiserfs_journal_abort_soft(struct super_block *sb, int errno) |
3872 | __reiserfs_journal_abort_soft (struct super_block *sb, int errno) | ||
3873 | { | 4215 | { |
3874 | struct reiserfs_journal *journal = SB_JOURNAL (sb); | 4216 | struct reiserfs_journal *journal = SB_JOURNAL(sb); |
3875 | if (test_bit (J_ABORTED, &journal->j_state)) | 4217 | if (test_bit(J_ABORTED, &journal->j_state)) |
3876 | return; | 4218 | return; |
3877 | 4219 | ||
3878 | if (!journal->j_errno) | 4220 | if (!journal->j_errno) |
3879 | journal->j_errno = errno; | 4221 | journal->j_errno = errno; |
3880 | 4222 | ||
3881 | __reiserfs_journal_abort_hard (sb); | 4223 | __reiserfs_journal_abort_hard(sb); |
3882 | } | 4224 | } |
3883 | 4225 | ||
3884 | void | 4226 | void reiserfs_journal_abort(struct super_block *sb, int errno) |
3885 | reiserfs_journal_abort (struct super_block *sb, int errno) | ||
3886 | { | 4227 | { |
3887 | return __reiserfs_journal_abort_soft (sb, errno); | 4228 | return __reiserfs_journal_abort_soft(sb, errno); |
3888 | } | 4229 | } |